text:
Any way to stop youtube or videos in chrome from playing over bluetooth in car?
Are there permission settings to block apps from playing over bluetooth? Every time I've been messing around on the internet or youtube and my android phone connects to the car, the last video I've watched appears on the head unit. I only want to allow play music to stream over bluetooth; nothing else...
The only way I've managed to get this to work is by using an automate flow, but I feel this should be built in functionality.
https://llamalab.com/automate/community/flows/6043


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What is an effective way to backup data?
I have a ton of stuff. Some of it is very old. One bizarre issue I run into when using android is that I can't copy or even see some of the oldest files when I plug the phone to a computer and open it for transferring files.
For some reason, the computer can't read or copy some files. There is no corruption or data loss because I can browse said files on the phone, open them or send them through Whatsapp.
Which is what I did last time. I have to back up a thousand photos so I send them through WhatsApp in batches of 50. Needless to say, that was quite annoying.
Is there some effective method/software of dumping all images and videos from the phone onto anything?
Why is there such a bizarre data reading issue any way?
Do I like need the android equivalent of shadowcopy or something ?

try Adebar or adb-sync, MTP has known issues with large amount of files

I have to back up a thousand photos

For backing up photos, I would use Google Photos. It's free, and it does it automatically (if that's enabled). It also has a ton of other features like sorting by people and pets, using Google Lens to copy text in the photo, and backed up photos are accessible on the web version.
Be careful though, as deleting a picture on the web version deletes it from the synced device as well, thanks to alecxs for mentioning this.

Google = no privacy!

Not necessarily. Plus, people share a huge amount of information with Google on a daily basis -- willingly!

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

sort: votes


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Where is the trash that the stock camera/photos app moves to?
In Android 10, if you take a photo with the stock camera/photos app (which identifies itself as either "Camera" or "Photos" in the app switcher¹) and then view it afterwards, one of the "buttons" is a trash can. If you tap it, the phone prompts you with,

Move to trash? It will be removed from all folders.
[Trashcan] Move to trash

Where is the "trash" that this is being moved to, and how do I access it?

(The device is a Pixel 3a purchased directly from Google, so it should be free of the sort of junk many carriers load onto phones.)
¹The app whose icon is:

Photos app > Menu > Bin https://www.xda-developers.com/android-11-hidden-recycle-bin-trashed-photos-videos

According to How can i find my recycle bin on Android? - Google Photos Community

... trash bin and the files inside it are not actually present on your Android device, which is why you can't find the files.

(Emphasis added)
By implication, they are stored on cloud  and that is where you restore them from if needed. You can locate them at https://photos.google.com/trash as mentioned in How to recovery the google photos deleted from trash - Google Photos Community.
I guess if you turn off sync for photos, deleted photos should be directly deleted without moving to Trash and obviously you won't find them at the location linked above.

At least on my Pixel 8 Android 14 it is: DCIM/Camera/.trashed-1709964560-PXL_20240118_001529242.mp4

Where is the "trash" that this is being moved to, and how do I access it?

Latest version of Photos App, Version 5.71.0.416067338:
Photos App -> Library -> Trash

AFAIK, the change was related to an update to the Google Photos app, not the Android version.

What ever the case is, I was only providing an answer to the question, as the previous answer doesn't answer the question

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


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USB tethering not working after using MirrorLink
Sharing was workink fine until I started using MirrorLink. Now when I try to share internet via USB cable i get greyed-out option saying "Port USB is used by MirrorLink". When i go to MirrorLink tab i get greyed-out option too, saying "USB tethering is turned on".  It looks like the Apps are fighting over USB connection. Can I somehow prioritize USB? I tried to turn off MirrorLink app but It didn´t fix the problem. Any ideas what should I try next?
(The pictures are in Slovakia language if you want something to translate just let me know)

Try clean cache MirrorLink because fix your tethering issue first then look forward to app

And give a translation as google translator isn't working well (minor errors) for all languages


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Is it possible to turn off the screen without stopping foreground activity?
Let's suppose I'm playing an idle game where things inside only happen when the game is running in foreground, or listening to music on YouTube, which also must be running in foreground to work. But when the screen is locked (turned off), all foreground activity gets suspended. Is there a way (like some 3rd party software) to somehow just turn off the screen (maybe even without locking the touch surface functioning) so that it wouldn't drain power and the foreground app would still work?

Exclude the app from Doze (battery optimization).

automation apps might help to create such action on long-press

turning the screen brightness down is already a step in that direction, and there are apps that can dim the brightness further afaik

Does this answer your question? How to turn off screen without affecting anything else?


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Can I kill wifi on my Android, similar to how kill -9 would work on a desktop, to force restart it?
Since I upgraded to Android 10, wifi on my phone frequently "dies" and forces me to restart the phone. Is there a way to achieve something similar to what kill -9 does on a desktop system on the processes responsible for wifi to force it to restart?
The problem is that wifi is turned of and can't be turned on again. If I tap the wifi switch in system preferences it briefly goes to on but then immediately reverts to off.
The device is rooted.

Kill wpa_supplicant. But that's not the solution to your problem.

@IrfanLatif Why not?

Go for fixing the actual problem, why WiFi toggles back to off. See logs, use svc wifi etc.

How do I "see logs", svc wifi etc?


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TeamViewer Android: how to connect in a unattended way?
My grandma is 89 years old, and I have installed TeamViewer on her Android tablet in order to remotely assist her.
But it is a problem for me to teach her understanding the screen messages, even when it is a single "Accept incoming connection? Yes/No" .
Is there any way to configure TeamViewer for Android to connect to it without any intervention on remote side?

Free(gratis) options preferred.

Pretty sure Android's embedded security pretty much prevents this from being possible without user intervention.

I believe the way it works is for you to install TeamViewer for Remote Control on your device and install TeamViewer Host on you grand mother device to allow unattended access. Test it after installing. Reading the comments, it seems it does not work on 100% on all devices.

A payment solution?

@SopalajodeArrierez Another solution is Anydesk but it also requires to accept the incoming session which won't solve your case.


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how to turn on phone when power button is broken?
its a xiomi mi redmi 5a prime.
i can get it to fast boot but since usb debugging is int enabled i cant get it to go to recovery.
mi manager doesn't detect the phone in fast boot as well. Is there any way to fix this apart from taking the phone apart?

https://android.stackexchange.com/q/20021

If you can get it into fastboot mode, here's how you can bootup your device:

Get Google's platform-tools (aka adb), from here
Boot your phone into fastboot mode
Run this command with platform-tools:

fastboot reboot

did try that, doesnt work.


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Xiaomi Redmi 5 Whyred turns itself off
My Xiaomi Redmi 5 Whyred started shutting down randomly - rarely enough to make is hard to reproduce. So far happened once during a day and every 2nd night.

I am using a Havoc-OS 2.9 (Based on Android 9) and had no problems with the system until last week, made no major changes to the system, dont even think I installed anything new.
So far I have tried freeing up some space, because I was tight on that, made sure phone is charged and no night-only-features are on.
Shaking phone to see if battery is not connecting somewhere gave no results - also phone turns off when on a flat surface and not moved, so I do not think that is the issue.
Installed accubattery to see battery health but it did not provide estimate yet.
Below I have attached a screenshot of battery usage, as you can see it is not a case of sudden battery drain.

If someone provide me with some clues about what to look for I would be greatful.

Why would it happen after a year of problem-free usage without any recent update happening that could trigger the bug?

If it is a crash you may find some kernel logs. Besides that devices that suddenly go off are often have a dying battery.


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Making the front camera the main one, or disabling the main (back) camera
My device's rear (main) camera is broken.
WhatsApp Web pairing uses the main camera in order to scan a QR code and can't be switched to the front (selfie) one.
Is there any ADB command that can switch the roles of Main and Front cameras? this way, the front will be activated by WhatsApp and I'll be able to scan the QR code.
Alternatively is there an ADB command that disables the main camera altogether? since that might also do the trick.
I'm with Android 10 with latest security updates (Android One).

The only way to do so is to use the advantage that Android kernels are open source and you can remove the drivers from the kernel itself then recompile to disable it.

@TipzTeam I guess buying a brand new phone would be cheaper than going down that path


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Contact cards in WhatsApp
I have long back deleted a number from my contacts list. Today I received a message from that number. On checking, WhatsApp shows this message Found one contact card for this number .
Can someone please tell me where does it find this contact? It's not yet saved in my contact list.

Sounds like WhatsApp is maintaining an internal list of contacts separate from your device contact list.

Where could such a list be stored?

That depends on WhatsApp - it will either be saved to external or internal app storage on your device, and perhaps even your account is synced with WhatsApp servers over the network.  The point is, WhatsApp is maintaining data.  I recommend investigating WhatsApp's settings and/or reaching out to them for support.

WhatsApp can collect contact information if it is shared in chats (or groups). I solved my problem by deleting all the contacts cards sent to various people/groups via WhatsApp.


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Hide music from list of alarm, notifications, and ring tone files
How to keep my music and alarm files separate suggested I could nut an empty file named .nomedia in my top Music directory to prevent Music files from being seen by the Alarm app when I create a wake-up alarm. Well, that does not work and when I set an alarm and wish a non standard alarm sound, I must scroll through over a thousand music files to find the Alarm sound file. Same happens with ring tones and notifications. How do I prevent Music files from appearing on my OnePlus 7pro w/ Android 10?

I had the same problem on my OnePlus 7. It's irritating that the Oxygen OS pick menu doesn't have a  search () option.
To over come this I use Ring Tone Maker. You search for a tone, long press and from 3 dots menu on right, choose to set it as a ring/alarm/notification tone. Drawback of this approach is that you can't find default tones in this app. If your device is rooted, you could locate those files and copy in some folder that would show up on this app


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Why do Google Play Services appear to access Location despite being disallowed to?
On my phone I disallowed Google Play Services access to Location many months ago. Yet Recent Location Requests item of the Settings still gets them listed:

How can this happen? Do Google Play Services have some special privilege to work around permission checking? Or are the apps that get denied permission to access Location still registered in this list?

Google Services are part of the system – so yes, they tend to ignore the user's preferences (also see here). Not only that: I once disabled Play Store on a device – and guess what: it re-activated itself again, pulling updates while I was on mobile data, burning 1/3 of my monthly data plan within half an hour. Luckily, my current devices are Google-free.

Play Services is the location provider i.e. other apps rely on it for high accuracy location services (other than GPS). You cannot deny location permission to a location provider. All Google apps are privileged: https://android.stackexchange.com/a/218153/218526. Explore your /etc/permissions/ and /etc/sysconfig/ directories to know the details.

https://android.stackexchange.com/q/225549


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How search for similar images in the phone?
I am looking for an equivalent functionality that is available on the desktop Google Search page: upload an image and search for similar ones.
Unfortunately once Google recognizes that I am on the phone, search with image gets disabled.
I also tried with DuckDuckGo.com but again I cannot find this option that is readily available once I am browsing on the desktop pc.
Can someone recommend a search engine that offers image search on the mobile?
Or alternatively simple way to fool DuckDuckGo or Google to let me search with image...

There is an app that claims to do reverse search. I haven't used it

According to Google support, you should be able to search. See support.google.com/websearch/answer/…. You have to put the browser in desktop mode. I just tried and it works

Indeed this one: https://android.stackexchange.com/questions/181506/google-image-search-using-android solves the problem.


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Recovering from a boot loop (Samsung S9 Plus) ... which CSC?
I am currently stuck in a boot loop with my Samsung S9 Plus. The phone in question can be booted into recovery and download mode, but that's about it.
I found that I should be able to use Frija or SamFirm to download the latest update, but it prompts me for the CSC. Now I understand what the CSC is supposed to be, but how do I find the appropriate one?
In my case the phone was bought in Germany, but initially it showed stuff in Italian when turning it on. So which CSC should I use? Or does it actually not matter at all?
Would it be okay to go with DBT (Germany, unbranded) as per this list?
I didn't by the phone from the carrier, but on the free market.
NB: since the system is in a boot loop it's too late to look up the proper CSC.

@alecxs thanks. But what are these supposed to mean? I know Frija (mentioned it in my question) and Odin. But that doesn't tell me which CSC I should give if I have no way to retrieve the current value during a boot loop ...

@alecxs I tried flashing TWRP and that failed, no matter whether it was a patched or pristine ODIN. And on the download mode screen I don't see a model number. Besides, the model number is not what my question is about, my question is about the appropriate CSC. I went with DBT in the end ... so far it's working.


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Is there a safe way to install Ubuntu on my Android phone?
I have a Xiaomi Pocophone F1 with decent specs: Snapdragon 845, 6 GB RAM, and enough storage. I was wondering if there is a tried-and-tested way to install some Linux Distro on it (preferably Ubuntu) for some specific reasons. I've seen some YouTube clips, but their instructions are not fully clear, so I wanted to ask here. Can anybody here give me a walkthrough or point me to a resource I can follow? Any help would be appreciated. Thanks.

There are two major problems for installing Linux on a smartphone: 1. the boot process is not "standardized" like on a PC (no BIOS/(U)EFI, ..). 2. The standard Linux kernel lacks support for a lot of components that can be found in typical Android smartphones because the manufacturer don't integrate their drivers and modifications in the standard kernel and instead providing customized kernels. Even for a common system like Raspberry standard Linux distributions do still not run perfectly on it (and Raspberrys are there for years, sold millions of times).

See the second part (How to boot Ubuntu on Android device?) of my answer to How to boot Ubuntu persistent live USB on Android?

More details: IS IT POSSIBLE TO INSTALL WINDOWS, iOS OR LINUX ON ANDROID DEVICE?

Also see: Linux on Android and HW support as Termux/Andronix may give you the Linux-like (but not exactly) environment on your phone.

what is your usage case for this ubuntu? do you still want to use it as mobile phone with apps? what apps do you expect to run on this? or do you just need a linux shell for doing cmd line stuff?

https://devices.ubuntu-touch.io http://play.google.com/store/apps/details?id=ru.meefik.linuxdeploy

UserLAnd is another Termux-like app for running some Linux distros on mobile. It can also be used to run some specific apps, like Firefox or GIMP. It seems to be a more-complete Ubuntu by default as it has sudo and most other standard commands, unlike Termux. Personally I like the ability to have multiple installations and keep one as a daily driver and playing around in the other and destroying it when it goes bad.


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Changing to an SD card with more storage for android phone
My original SD card is formatted as storage so I am not sure if card readers can read and transfer data from it. So basically, I am looking for a way to switch SD card and preserve the files. Thanks in advance!

if it is encrypted adoptable-storage you can only clone 1:1 partition size, so best is to backup everything before removing sd card. internal storage contains /sdcard (for that you can use MTP or adb pull) and obb data (you can use adb backup -obb -shared)

@alecxs What you write is true for an FDE encrypted adoptable storage. Have you ever encountered an FBE encrypted adoptable storage? They may exist since Android 9. From my understanding cloning and resizing of the adoptable sd-card should be easily possible as the partition is just a standard file-system like ext4. Would be interesting to see such an adopted sd-card with FBE.

@Robert AFAIK adoptable storage sm uses dm-crypt (and FBE on top which lead in the famous double encryption bug). Haven't seen any android 9+ supporting adoptable-storage in the end, newer devices have enough memory up to 256 GiB. btw i am not using encryption at all, i don't like the idea of hardware backed encryption, even a rugged outdoor phone can break


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Where does Android get its DNS information when connected to Wi-Fi?
I'm hosting a server on my LAN with a port exposed publicly by the router. myserver.mydomain.com is pointing to the static IP of my router. So I can access the server from the the internet.
To make myserver.mydomain.com work when connected to my LAN I added an entry to the DNS server of my router, so it redirects to the private IP address of the server. This works fine for most devices connected to my LAN, except for my Android phone, where myserver.mydomain.com still resolves to the public IP of my router, even when connected to my Wi-Fi. So I suspect android always uses google DNS servers or something.
When I'm out and about connecting to some random Wi-Fi network this seems like highly desirable behavior, but when at home this creates the said issue.
I know I could configure my own DNS servers on my phone but I don’t want to configure that manually each time I connect to my LAN.
What would be the best approach here? Maybe I need to set up local access to my server differently?

I would suspect that its not using google DNS but rather the 4G connection. If you disable mobile data, does it still does that? Also, keep in mind that it possibly have cached the DNS locally once and that its just reusing the cached data, so you may have to clear your DNS cache too.

Which Android version do you use (newer Android version ? Have you checked the DNS settings shown when you click on the Wifi network you are connected to? Usually Android uses the DNS server announced in the DHCP response received from your router unless you have enabled "Private DNS" in the network -> advanced settings (or in Firefox for Android should you use it).

Does this answer your question? Why is Android refusing to resolve DNS records pointing to internal IP addresses?

Most probably it's due to encrypted DNS as Robert mentioned. I've also seen users reporting this problem caused by routers advertising IPv6 DNS servers (as in the linked answer). Related: Accessing local computer using hostname, How does Android OS do DNS name resolution?

Shameless self-promotion ahead: you could use my tool Adebar to see that in the generated device documentation (examples here. Or manually call adb shell getprop X with X being net.dns1, net.dns2 (both mobile/fallback) and wlan0.dns1.

Thank you all for the comments. They helped me work it out.
I'm not 100% sure of the cause of the behavior. It stays even when I switch off 4G and restart the phone. In the post linked to by Irfan Latif it is suggested that Android favors IPv6 dns servers. That could be the cause since my network is IPv4 only.
But the hairpin NAT provided the solution. (Called NAT Reflection in pfSense) After enabling this, things started to work.


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Is there a quick way to change settings on Android?
Sometimes I need to quickly change a couple of settings, which are located deep enough (3 or more levels) in the settings menu. Is there a way to do this without actually opening the settings or writing my own app (which I could probably do, but why doing something that could be done more easily, right?) to do so?
I have thought about: maybe there is something like pinning certain settings to homescreen or something like .bat files on Windows? Or maybe there are certain apps where it is possible to quickly change settings from a list or even create some settings presets?

There are apps on Play Store that can help create shortcuts. Search for "settings shortcuts" or settings app etc

@beeshyams Most of the apps just open certain categories in settings. Can't find anything that actually helps changing settings quicker. Only found this in some link on Stack Overflow. Wanted a shortcut for mono audio to start with - it requires root (weird, as long as I can change it manually). It seems like I'd better stick with manual changing for now, less time consuming than trying to tweak something to work.

Not all settings are accessible through commandline without root access. If yours are, or if your device is rooted, create a shell script and run it using Termux widget.

@IrfanLatif I will definitely give it a try, thanks for the idea

https://play.google.com/store/apps/details?id=com.sika524.android.quickshortcut


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Click to ROOT even without PC? How is this possible?
There are many apps which says you can root in single click, like framaroot, one click root, kingo root.
I'm not sure whether everythings works, but, YouTube videos claim that.
How these apps root a phone with just a single click?
If a app can root a phone with a click, it can also do that without the knowledge of a user.
So, How do these apps work?

Those one-click-root apps are usually pretty old as most of the used exploits were only present in Android 4.x and 5.x. Hence on newer devices they are useless. Therefor look at the compatibility list and the list of supported Android versions of each app.

https://autoroot.chainfire.eu/ this says android till 7.0 are compatible. Is security patches are released for these exploits. Do you have any external source for reading.

But on the linked page there are only odin/fastboot flashable images (hence both require a PC and an unlocked device), no app based rooting if I have not missed something.

currently i am just aware of one app (which i don't mention because it is based on top of others work and violates the copyleft of the original author of the underlaying binary) How these exploits work? https://www.xda-developers.com/mediatek-su-rootkit-exploit


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What is this icon on top right corner of screen?
I have an android phone which shows a peculiar icon on top right corner of the screen (notification area):

I believe:
Icon number 1 is for signal
Icon number 3 is for wifi
Icon number 4 is for battery.

What does icon number 2 indicate? I could not find it on searching the net. Thanks for your help.

Ok. I agree it looks very similar. I hope this does not pose any security risk.

Of course not, it's a facility by network provider. Disable it if you don't want it (ask your provider if you can't find it in your settings)


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How to reset static IP address back to DHCP for ethernet
I have setup a static ip address for eth0 with adb command ip addr add $ipAddress dev eth0 plus other commands to set the netmask, route and dns values.
My question is how to I go back to a non static IP address
I tried doing ifconfig eth0 dhcp but I get an error in adb saying

ifconfig: bad argument 'dhcp'

Right now the only way I can reset everything is if I reboot the device since the changes dont persist.
How can I reset them without a reboot?

If Android runs DHCP client on Ethernet interface, it's not removed by adding a static IP address to the interface. However you also changed the routing table and DNS. It means you need to force the DHCP client for a lease renewal. But Android's DHCP client runs in Java framework and there is no straightforward method to communicate with it (some service calls may work but I never tested). Also, usually there's no GUI settings to turn Ethernet on/off like WiFi and Mobile Data. So the simple approach is to replug the Ethernet cable. Or restart the device.

@IrfanLatif I came across ifconfig eth0 default that seems to reset everything like it would on a reboot all routes, netmasks and dns values appear to be reset. Any input on using that command?

Solution without root privileges:

Disable WiFi

Run:
 adb shell settings put global wifi_connected_mac_randomization_enabled 1

Enable WiFi and connect to your network

You should have a new IP.

I have root privileges

It works also if you have root privileges.

/system/bin/sh: put: not found

@CSQGB settings was missing in the command

@android:/data/local # put global wifi_connected_mac_randomization_enabled 1
/system/bin/sh: put: not found


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AFWall+ block entire internet in Oasisfeng Island (work mode)
I have a OnePlus 6 running Android / OxygenOS 10 and have AFWall+ installed. It works fine as long as I don't use the Island app inside the island (v.4.54) of OasisFeng.
I set finally a profile which allows ALL apps to access wi-fi and in / outgoing and forward traffic is allowed to tese whether there is any service / app needed for the 'work' user (the island).
Even then, in the 'mainland' everything works normally but on the island internet is fully blocked.
What is going wrong here ?

Apps in work profile have different UIDs than their main profile counterparts. A 3 digit number (like 100, or 110, or 999) is prepended to the main UID (see details here). You need to enable multi-user support in AFWall+ app. Then every app in work profile would appear in AFWall+ as a separate entity.

I tried this, enable 'experimental => Multi user', but in 'mainland' I could still not see the apps on the island. This thing is that I want to use the firewall in Mainland only.

It's Experimental → Dual Apps Support. Multi-user is somewhat different than work profile


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Android prevent brightness from dropping below some percentage
I had the following situation. In my phone I might accidentally drop the brightness to 0.  .When that happened I could not do anything. I had a hard time unlocking my lock-screen using a pin code. I had to use some flashlight to be able to unlock my phone and reset the brightness. Now in order to prevent this in the future I want to set a threshold (lets say 30%) that the brightness will not drop below that threshold. Is that even possible?

The minimum brightness mode is as far as I know a fixed value that can't be changed on an unrooted device. A too dark brightness is very rare, usually it is the other way around. I would recommend to prepare your device: enable developer options and ADB plus authenticate a PC by connecting it. For entering the pin use a simple USB keyboard that works blind and after unlocking you should be able to set the screen brightness via ADB.

Apps like this allow you to set brightness level

You can use ADB to setup the brightness:
adb shell settings put screen_brightness 255
the value can be between 0 and 255.


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Is it possible to get a statistic of the most used colors on a smartphone screen?
I would like to know for all rgb colors how much time a color is active on screen for all pixels and if it is possible to do it without the need to record the screen.

Tried this? It claims to export colors to CSV//Explaining why you want to do this in the question by [edit]ing would help

Do you mean for an instance of time, or for a specific duration? I don't think Android stores this kind of stats. Also, each app/website may have a different color theme, so I'm still not sure what you are trying to achieve?


text:
Pull Memo data off LG L33L
I have an old Tracfone LG L33L and have discontinued service on it.  I can access it with USB or wifi.  And there are memo files on it that I was planning on pulling off via USB.  I can't find them.
How to I find and then transfer those files to my laptop?  Or will they even be readable, if I can find them?
I added a memo file and then searched for files created today, and nothing was found.  I searched by file name, and found nothing.  I'm looking in Internal Storage, which is all I see when connected via USB.

memos are most likely not files (depending on kind) apps usually save data in databases besides app data isn't saved internal storage, you must examine adb backup files


text:
What is this system icon (looks like upside down Signal strength)?
Does anyone know what the left-most status icon is here? The one that looks like an upside down signal status.
It only shows up randomly from time to time, and I've tried toggling on/off different settings (such as night light) to try to make it go away, but nothing has been successful.
Rebooting my phone gets rid of it, until the next time it randomly shows up in a few days or weeks.
Moto G Power running Android 10, with all current updates.

Device user manual does not mention this. Are you using a VPN?

Also check in safe mode. If it is not present in safe mode, it is because of some app.

Since this is in the system area of the notification bar, I suspect that it might be a network signal indicator of some sort - perhaps roaming or mobile hotspot?  Can you toggle "mobile data" off and see if the icon still persists?

@beeshyams no VPN.

@CzarMatt I don't use it as a mobile hot spot at all, and never really go into roaming areas. Can definitely try toggling mobile data and see what happens, though... I have to wait till it comes back.  ... One of "those" issues. lol

This issue is specific to Android 10. On a thread this issue was solved after updating to Android 11. Really curious what it is for tho

@Aayush do you happen to have a link to that thread? Would be curious to read it.

@eidylon Locked.. https://support.google.com/pixelphone/thread/60105843?hl=en

@CzarMatt - well, it was't mobile data. However, toggling my wifi off and back on again made it go away.

I'm seeing it when running Blockada ad-blocker VPN. Turning it off removes the icon. If I pull down the notification bar, it changes to the normal key icon until released. Only started seeing it in the last week so maybe Blockada is tapping into this icon with a recent update.

Yeah, it's something relatively new for me too, shortly before I'd asked this question, guess as a result of a recent system update or something. I generally don't run any VPN on my phone, though could be something else using some sort of BTS networking.

It took me a bit of digging to figure out. It's actually a kind of rare icon. It means: 'Network/SIM/carrier-locked without prejudice'.
Say, if you have a CDMA, GSM, LTE/Dual SIM and want to use a compatible service provider SIM, you may, however, until you satisfy contractual criteria, your phone may not be officially network unlocked. This allows you to use the device, but it will look sketchy if you try to sell it. You almost never see this on postpaid phones, as when the phone is paid in full, the unlock is granted upon request, and if payment is not made, the phone is almost certainly blacklisted. You can make a NAND and edit the script to swap the IMEI with that of a broken phone, recompile the script and flash the edited firmware, or there's a simple technique to having it removed from the blacklist. Also, this icon will usually stop appearing the moment you begin using a valid SIM, and almost always makes its first appearance upon the denial of user request for network unlock.
I've noticed that on many devices, when Network unlock fails on prepaid devices, an alternative provider SIM almost always works, and sometimes, setting the phone up doing a formal soft reset and clearing any FRP issues will allow the device to be unlocked with the Network/SIM unlock app. In other words, enabling OEM unlock, (a prerequisite to unlocking the bootloader in many cases) and then doing a hard reset and curiously clicking the unlock app and seeing, "SIM unlock failed" will almost certainly trigger the presence of the NLWOP. Oh, in case anybody ever wondered what NLWOP stands for it's: Network Locked W/o Prejudice.
All in all, it's an icon that basically means no matter what SIM you use, it will still have Verizon apps that can't be uninstalled without root, and a Verizon splash screen. As long as that icon is up there, it's a dead indicator that not all the Ts were crossed and Is dotted. Except nobody knows what the hell it means, nor cares.
It's never given me any trouble other than what I've mentioned. But I've worked around that all too. By gaining root access, and learning about ADB, ADP, and with programs like Android Kitchen, which makes coding Android easy, you can make your Boost mobile phone appear to be a white box, remove all the bloatware, in some cases, flash a ROM which uses the same network from a similar device, a custom ROM, or like a ported out, streamlined Motorola ROM for your old LG, for example. The icon is only annoying and will correct itself. If you want it gone for good, the right way, just perform a web search for (your device) Network unlock eligibility criteria. Cheers.
Oh, and I had an afterthought: the icon doesn't just appear, it actually transposes your WiFi signal icon. The reason it is done this way is because there used to be great difficulty in blacklisted phones being set to WiFi only, so the WiFi signal is transposed with the 'anti-service' icon. You don't have to reset your device or anything, simply tap the Wi-Fi tile to disable WiFi, then again to enable WiFi and that will fix it every time. The evidence that this icon is the NLWOP icon, is that, more responsibly, when you drop down your notifications window, the 'anti-service' logo is now a padlock, the official Network unlock application icon.

Welcome to Android Enthusiasts Stack Exchange, a Q&A site for Android end-users and power-users! This looks like a great explanation about this matter. I did some cosmetic editing by adding some paragraphs because it was kind of difficult to read without spacing, but feel free to [edit] further to improve it, especially if the sentences grouping is not as intended. Thanks!

Also, by "ADP", did you mean "Android Dev Phone"?


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Huawei without Google Play: will I be forced to create a Huawei account?
I wish to buy a Huawei P30 Lite phone. It's a phone without the Google services and play. Can I use this phone without a Huawei account? Only use F-Droid apps?

Google Play is available on Huawei P30 Lite.
http://storage.googleapis.com/play_public/supported_devices.html
Only Huawei devices that are produced after the Google Ban, which is 20 May 2019 do not have Google Play Services.
You will not be forced to create a Huawei account in order to use the phone. Huawei account is only needed you are using specific apps on the Huawei devices.


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How to see all partitions on an SSD
I have an SSD with 2 partitions (volumes? ) on it. I can R/W to both of them from my WIN10 PC.
However, when I mount it on my Note10 , I can only see one of the partitions.
Is there a way that I can see both partitions when I open file manager?

What file-systems are used by the partitions?

It depends on multiple factors including if vold supports multiple portable partitions on portable storage, if voldmanaged entry in fstab for your USB OTG storage device is configured to recognize multiple partitions, if partition type (id set while creating partition table) is supported by vold etc. With root access however you can handle things manually. You can check kernel log and logcat to see if both partitions are recognized when attached.

you need custom ROM because stock ROM only mounts first partition


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System not mounting as rw
I wanted to copy an app to the system folder so I tried it using es file explorer but it said read-only so I looked up online and tried mounting it using this command mount -o rw,remount /system  but got this error, what should I do? btw I am using a rooted oneplus 7 with magisk
:/ $ su
:/ # mount -o rw,remount /system
mount: '/system' not in /proc/mounts
1|:/ #

https://android.stackexchange.com/q/220370
https://android.stackexchange.com/q/220892
https://android.stackexchange.com/q/223872

If you have magisk than don't bother with modifying your system partition. Try App Systemizer Magisk module. Easiest solution I see to make an app a system app.

Thanks for the help I tried doing it but it didn't seem to work so I downgraded to android 9 and rooted again it seems to work perfectly now and android 10 sucks for rooting.


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Connecting to own proxy with self-made CA certificate not (properly) working
I have a Squid proxy installed with HTTPS/SSL support. When I install the generated CA certificate in Firefox and set the proxy, everything looks good -- that is, I can see all the HTTP(S) requests the Squid log files. It also works fine when I install the CA certificate in my emulator (Android 9) and set the proxy. Again, see all the requests in the Squid log files, i.e., the requests made by the browser or the apps that use the proxy settings.
However, when I do the exact same steps on a real device (Samsung A30s with Android 9), I have problems. Well, I still see all the requests made by the browser, but not the ones made by apps (and thus they yield connection errors). OK, I still can see the CONNECT request in the logs but no other requests (e.g., GET, POST). So the apps are definitely using the proxy settings. (I know that some apps like Facebook ingore the proxy settings and connect directly to their server; they still work fine, of course).
The odd thing is that everything was working on an old Android 6 phone. Here the same apps where working perfectly fine using the proxy and relying on HTTPS requests. Now I have a newer Android 9.0 phone and all apps so far fail. The apps obviously use the proxy (seeing the CONNECT entries in the logs) but seem to not not use/acknowledge the installed certificate.
Can the newer Android version be an issue? Maybe permissions? Can it be that the newer Samsung phone has some bloatware that requires additional settings or something (the old phone was a OnePlus with an almost stock Android version as far as I know)?

"Apps that target API Level 24 and above no longer trust user or admin-added CAs for secure connections, by default.". API 24 is Android 7. So you need to add them to /system/etc/security/cacerts

@IrfanLatif thanks! Yes, that must be the problem. If I may clarify with you -- sorry, I'm not Android crack and only started looking into this for user study for a research project -- do this only work with rooted phones? All tutorials I found for storing certificates in /system/etc/security/cacerts require su to remount the file system as writable.

Yes definitely. /system can only be modified with root access. dm-verity (Verified Boot) must also be disabled, or you may use bind mounts (see Magisk documentation for details). But please note that the app which are not proxy-aware (as you have mentioned) and those using SSL pinning will still not work with proxy. You need to perform extra steps to make them work. See some more details on using proxy on Android devices in this answer and the links given inside the answer.

Very much appreciated! This SLL pinning is new to me and I have to read up on it, but I've noticed the problem since I got the Twitter app only running if I exclude on the proxy side. I was afraid of such obstacles, of course, since we essentially want to play a man-in-the-middle attacker, although for an IRB approved user study after signed consent :). Our currently last option we are looking into are an app that runs a local VpnService. But the solution I found works far from stable (I might post a separate question).


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Today, my phone out of nowhere started opening random spam/scam sites. What can I do to make it stop
I have an Huawei mate 10 lite, and today it started randomly opening my browser and showing me scam sites. I have tried some anti-virus apps, but after a full scan they didn't find anything. I also looked at my apps, to see if anything suspicious app was there, but I didn't find any blank app/unknown app. The only thing I don't want to do is to factory reset my phone. Can you help me with my problem?

First thing is to clear the cache of the phone and reboot

find a way to backup important apps, factory reset seems the safest solution

This thread had the answer for me.  It turned out to be the latest QR code scanner.  It said it had ads but did not say it opened them in the default browser randomly.


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Android system keeps resetting default USB configuration upon PC connection
Whenever I'm connecting my Samsung Galaxy A40 running Android 9.0 to a laptop or PC, I'm getting an annoying prompt to allow data transfer, and the following setting which I had set to "Charging phone only" gets reset to "Transferring files":

However, I only want to charge the phone and absolutely never allow data transfer for security reasons as I frequently have to connect my phone to public or workplace PCs for charging. The service which throws the notification/prompt is called Android System and the icon looks a bit like this (only with filled font):

I activated developer options and explicitly configured the USB connection settings to not allow data transfer. Why does Android System keep changing my settings and prompting for data transfer? Is this normal behaviour? Is there a way to regain control without having to root the device?

Let us continue this discussion in chat.

Dammit, I wish this happened for me! Trying to figure out a way to freeze the setting at MTP file transfer (which keeps getting reset to Charge only :(

Haha. The funny thing is that now my setting is also on Charge Only as default and I have no idea when or how this changed

FIX (may help someone): it's not a software issue, you just have to clean your charging port as it shows in the following video: https://www.youtube.com/shorts/KRkwcLKz3IA.
Also remember that you must have developers options and usb debugging enabled.
This worked for me.


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Stop Google Maps from loading location photos/thumbnails
Google Maps automatically shows photos when searching for places, but this uses a lot of data on mobile networks. Is there any way to block the loading of images?

You have to completely disable location features on the Camera else wise it shows the same.
There is nothing like separate Settings for disabling this thing in Google Maps.


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Is there a way to get Helium to work on a Moto G7?
I am trying to restore a single game data file to a new Moto G7 via Helium. I've enabled USB debugging, but when I start the desktop app, they don't connect to each other. The desktop app connects just fine to the old phone I'm trying to pull the data off of.

Based on your description (which is not very extensive) there seem to be a problem with the connection between your new phone and your PC (Windows, Linux, ...?). Have you checked if adb shell or if adb backup works on command-line from the desktop PC?

Yes they did work. Eventually the helium chrome version worked.

I'd flag for closure as 'ephemeral' but that reason is gone.


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Recover backed-up linked email account after factory reset
I had previously linked a office 365 account to my gmail app. Due to reasons, this office account got blocked and I no longer have access to it, but I still could see all the emails that had been synced to my phone.
Today I decided to do a factory reset as I had some problems with the phone. I have checked the settings of this office account in the gmail app, and it stated that it was backed up. So I proceeded to do the factory reset. Now I have re-linked my phone to my gmail account, all apps have been reinstalled, but the office 365 account that was supposed to be backed up is no-where to be found.
Is there any way to recover the emails or sync this office account from the backups?

guesswork, backup just stored email login credentials because typically emails are stored on the email server anyway

yeah that is what I though as well... But they should be more clear about it.


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Folders missing in (some) apps
I have a strange issue. Just added some new folders in my Music folder after purchasing some new albums. Created them using Total Commander like always, transferred some mp3 files via ftp to the folders.
Now, some apps cannot find these folders or songs. It's not just my music app (Pulsar), I've tried re-installing without difference, and also tried a number of other music apps, some of them find the files and some don't. If I "open with..." the files using Total Commander the Pulsar app sees it and plays it without issue.
I have verified in terminal that chmod is the same as other and cannot see any other differences either.
Anyone have an idea of what the issue can be? Can it be related to different ways apps look for files or something?
I'm on a OP6, rooted with magisk but stock ROM.

I had a similar problem a couple of years ago & installed this app. It helped. I have no clue what the problem was and why this solved except a guess that SAF was broken and this fixed

Tested stuff related to SAF, among others to setup to use legacy system with no change (appops set com.rhmsoft.pulsar android:legacy_storage allow).

Did you try to force your Media Storage to refresh its index? In some instances, it doesn't do so on its own.

Thanks Grimoire. Media Storage was the issue. Did a manual reset of it.

The solution was that Media Storage didn't refresh. I manually cleared data in the Media Storage app and rebooted. After a while the app could find the files.


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How to indicate that certain contacts or phone numbers should never be sent outgoing text messages (SMS or MMS)?
Is there any way in Android or the Samsung Messaging app to mark some contacts or phone numbers as "Do not ever send SMS/MMS to this contact or number"?
I see incoming block functionality, but nothing for outgoing.
Ideally, I would like certain contacts or phone numbers to simply not be available when selecting recipients from the Messaging app.
(Note that unlike for this outdated question, it doesn't matter to me whether or not I can receive incoming text messages / MMS from the contacts in question.)

Samsung has call barring to deny outgoing calls as explained in answer here. Haven't heard of such a feature for SMS

@beeshyams Thanks. Yes, I took a look at call barring, but as you mentioned in your answer, it blocks outgoing calls but unfortunately not SMS / MMS.

if you use version older than v3.30.3 macrodroid can do actions for outgoing sms, for example trigger airplane mode. not sure if root is required for this


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Storage Shows Two SD Cards?
Nokia 1
Android 9
Storage shows one SD card in use and a second SD card not inserted.
There is only one SD card in the phone...
Please see image.

Maybe a glitch with the file manager (built in?) you are using. Try with a different file manager. Plenty of them on Play Store.

I have the same symptom right after formatting a card to be used as extended storage and moving data to it. A lot of files are missing and some apps are crashing.


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Deeper Reset than Factory?
I have a Galaxy S7 which I purchased from Virgin Mobile a few years ago. Recently, because of international travel to Mexico and Canada I had it unlocked and now have an AT&T account. However, when I traveled to Mexico, the roaming feature is grayed out and it never connected to a network. The SIM worked, connected to the Mexican network, in another Android, so its not the SIM. As a last resort I factory reset. The Virgin Mobil splash screen came up, so apparently some settings are still in ROM. AT&T Tech Support verified a correct account configuration (roaming enabled)
Is it possible to reset this portion of the ROM?  I'm thinking the Intl Roam feature is disabled in the same manner that the splash screen wasn't blown away from a reset.
When I came back to the USA, the phone worked, but i had to manually set the data network access point.

Virgin mobile is a proprietary prepaid Samsung Touchwiz Android repack - So that portion of the rom is not configurable.
What I would do is reflash the phone to North American Unlocked S7.
here's an XDA link with instructions.
it might be a bit of a pain but it will solve your problem utterly, and debloat your phone as well... making it a better phone quite frankly...
https://forum.xda-developers.com/galaxy-s7/help/sm-g930p-to-sm-g930u-t3813580


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Two-factor ID and Find My Phone app
After enabling two-factor identification on my google account, I lost my android (Samsung 9) phone, so I tried to use the Find My Phone app on a friend's phone. Of course, the two-factor ID correctly prevented me from being able to use that app to find my phone.
I found my phone this time, but in the futue I would like to be able to use Find My Phone app on another device, authenticating myself with two-factor ID still enabled. I'm sure there is a way to do this, perhaps by pre-authenticating myself on Google Authenticator on my PC or a friend's phone, so in the future I can Find My Phone but others cannot. Please help! Thanks.
Siirandler

With activate 2FA you should prepare a backup code for Google: https://support.google.com/accounts/answer/1187538?&hl=en


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how to remove pattern lock in a rooted android phone?
My Xperia is Running on RR-16 OS I have added 6x6 pattern unlock, it's been months I touched it so I forgot the password
is there any way to remove the pattern lock through ADB, I also have TWRP recovery installed in it so, is it possible to delete the file containing the passwords data
Thanks in advance

only if TWRP is able to decrypt without pattern it is safe to delete locksettings.db (FDE) otherwise make a backup of /data/system and try to set new pin from https://google.com/android/devicemanager

@beeshyams unfortunately i don't know how to modify locksettings.db because afaik db-wal and db-shm files will detect modifications and destroy the whole database

outdated! just for reference https://stackoverflow.com/q/22142940


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OneDrive app says spreadsheet is corrupted
I have a spreadsheet in my OneDrive storage. Using the OneDrive app on a Samsung TabA tablet I can see the file, but if I try to open it it says the file is corrupted.
However, if I open OneDrive in a browser on the tablet I can look at the spreadsheet normally, so there's nothing wrong with the file on OneDrive.
Does anyone know if the OneDrive app has issues with certain Office documents? This particular spreadsheet has 168 worksheets - could that be a problem for the app?

See here for restrictions on file name

Thanks for suggestions. I can confirm it is definitely a legitimate filename, and doesn't contain any restricted characters. It does contain spaces, but that also applies to other Office files which open normally with the app.


text:
Can a user create a "work profile" for an enterprise account?
So I added a work related Google for enterprise account but it's now showing up along side my personal accounts. I know there is a way that the enterprise admin (which is not me) can force the account to be separated from my personal accounts (different gmail/calendar/drive apps, separate file spaces, restrictions on transferring data, etc.), but they seemed to have not elected to do that.
Is there any way I can cause that to happen without having to involve them?

Note: I've found the option for adding multiple users, but that's not what I'm looking for as that seems to be a only-one-is-logged-in-at-a-time thing where as the thing I've used before has only one session just with duplication and isolation of the apps.

You can isolate workplace from personal data by using Shelter

Work Profile Device Policy can only be changed by admin. It nullifies the purpose if modifications are possible otherwise.

@IrfanLatif Does it mean isolating by shelter won't work? I haven't used Shelter in such a situation but see no reason why it shouldn't work

@beeshyams it looks like OP has already a DPC app installed by some admin. So it depends on the existing policy if it allows installing another DPC app (Shelter) to create multiple profiles or not. This may happen possibly (I'm not sure though) but I haven't seen a practical case so far. Usually only one Work Profile app can be installed at a time.

Actually, the issue is that there is no Work Profile Device Policy at all. And I don't really care how it's configured as long as it is. -- Enabling it in the first place is the one things that a non-admin could do that wouldn't nullify the purpose. Maybe I'm just viewing it from the other side; I want to use a Device Policy to isolate the non-work stuff from the work stuff.


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How to search entries in the dialer contacts by both first name and last name?
I have Android 10 on my Nokia phone which uses AndroidOne program, i.e. it has the standard Google dialer app installed.
The display settings in the app are set to "Sort by Last Name" and "Display first name first".
I have the following issue: When I search for a contact in the dialer app and type a last name of the contact in the search field, the correct contact is not found. Only if I type the first name in the search field, does the contact get found.
If I search for contacts in the Contacts app (also by Google), the contacts are correctly found regardless of which part of the contact I type in.
Why is there this difference? I'd expect the dialer app to also find contacts by any part. The dialer app has the access permission to contacts on the phone.
Thank you for any hints!

Hmm, I just tried searching by first name, middle name, and last name on Google's Phone app and it works though.

It does not work for me. Some names are found correctly, but for some others, results are displayed that are absolutely not related to the input in the search field. I tried to delete the google account from my phone and reattach it, but it didn't help.

I have the opposite problem in fact. I can search for Last Name only using the dialer. Matching first names don't appear. When I do 'search contacts & places', I am able to search on both first and last name.


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Troubleshoot VPN issues on Android
I'm using the Always-on VPN feature of Android to ensure a VPN connection. Whether I'm using OpenVPN or Strongswan as a client I always have connection issues on Android if the network node changes. Either I have to wait for a random time (1min - 30min) until it works by itself or I have to reconnect manually.
Strongswan is worse than OpenVPN because it literally happens every single time the node changes. Sometimes the client even reconnects by itself, as I can see on the elapsed time being reset, but I still have to reconnect manually afterwards to use the network. This is really annoying but I have no idea how to troubleshoot this problem. I tried searching CatLog for VPN entries but I didn't found any warnings or errors.
How could I troubleshoot issues like that?

For mobile use with changing IP addresses I would assume that an UDP based VPN system works best as it simplifies the hand-over and should not require to reconnect the VPN. I know that OpenVPN can be configured to use TCP or UDP - check your config.

Ok that seems to be the reason why OpenVPN works much better than StrongSwan, the connection on OpenVPN is via UDP. But even OpenVPN with UDP has those issues.

OpenVPN should always be configured with UDP, except in the following two scenarios: (1) Troubleshooting; or (2) If receiving high packet loss.  All OpenVPN packets are TCP and TCP cannot efficiently encapsulate itself, which is why OpenVPN encapsulates the TCP packets within UDP packets (if configured with UDP); If OpenVPN is configured with TCP, a substantial performance hit on throughput occurs.

strongSwan uses UDP too (IKEv2 and UDP encapsulated ESP). The app should also be able to easily switch from one IP to another (using the MOBIKE protocol). You should really debug what's going on during such a network change (i.e. read the logs). However, it might be a problem with the system image (so information on the device and Android version could help).

I'm kinda stupid... I didn't check OpenVPN and StrongSwan properly. Both apps provide logs. The cause of my issue with OpenVPN is TLS Error: local/remote TLS keys are out of sync. Now I'm going to see what causes the issue for StrongSwan.


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What is the differences between RR images ARM / A64 / ARM64 / system?
When downloading Resurrection Remix GSI images, there are a lot of options to choose from, namely:

A64
ARM64
ARM
system

ARM64 is self-explanatory. ARM could probably 32-bit version for armv7 CPU. What is the other 2? I cannot find any explanation anywhere on their website.

Sorry that no one has answered this question. I'm answering this question so people may come across it like myself.
A64 is the short hand for arm32_64binder. It is basically 32bit for armv8 CPUs which are capable of 64bit. The software is 32bit with a 64bit binder for 64bit capable hardware. An example of a phone running an A64 firmware is the Galaxy A6 2018. It is running an Exynos 7870 that has support for 64bit but the software installed is 32bit.
"system" is not an arch it's just a name added to some GSIs for whatever reason.
Hope that answer your question, I tried to make it as simple as possible. If you are installing GSIs and you want to know what type of GSI to choose then install an app called "Treble Info" from the play store.

I'm having that device right now :) The hardware is 64bit and I want to run 64bit software on it but it said not possible because OS is 32bit


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Flashing stock firmware deletes everything from / (root) directory?
Hello i have a Xiaomi Mi 8 and i was playing with adb shell servies commands and now it shows "android phone service stop working" and it keeps rebooting.My question is when i flashing stock firmware from xiaomi tool, deletes everything from / (root) directory and installs new one folders/files?I want to check this to make sure if it's hardware or software problem

"when i flashing stock firmware from xiaomi tool, deletes everything from / (root) directory and installs new one folders/files?"
Most likely yes, if there is no option to keep them in Xiaomi tool. All internal storage will be cleaned except external SD card if you have inserted it.


text:
Reverse tethering without rooting or third-party software
The option "USB Internet" can be found by default in the settings of some Androids, allowing to reverse tether.
How could one know that the option does exist and work before buying a device ?
Does it depend on the Android version only ? or the manufacturer ? both ?

That must be a manufacturer specific and device specific thing. Stock Android doesn't provide such feature (though not complicated to implement).

could you provide more details/sources about "not complicated to implement" ? I've read somewhere that it requires a piece of hardware in the smartphone, but I'm not sure about that, that's why I'm asking.

If direct tethering works on your device, all that it needs to setup reverse tethering is a few network routes on PC and Android. On Android it can be added using some VPN-based app (non-root) or manually using ip command (requires root). I'm not sure what kind of source you need. A web search on "reverse tethering" returns a lot of information. You can provide the link to source asking for special hardware, to make your question clear.


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How to monitor device with excessive wifi usage
My younger sister has an Amazon Kindle Fire 10", and according to xfinity it uses more data than the entire rest of the household combined. This morning I opened the xfi app, and found that this trend is continuing with 7 hours of network activity by noon, however, her tablet "freetime" doesn't allow her to use the tablet till four in the afternoon!
What I am wondering is, what is the best way to scan/monitor/check for, foul play or a malfunctioning app? If Xfinity is to be believed, this "glitch" has used over 400 GB of network data in 10 days! (I am a power-user and am ready to use-and-abuse all my developer rights to figure this out)

Shut down the tablet and you will see if the tablet is really the cause. If the traffic continues while the tablet is off another device is causing it. In this case you should change the WiFi password in the router to something long and complex.

you can check which app causes this. for me it was email. i had to clear data from app settings to fix this https://android.stackexchange.com/q/211929


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Colors "too warm" with P30 pictures
I bought a P30 a month ago and I'm experiencing colors issues with the camera.
The colors are way too warm, if I would take a picture of a white / light yellow potatoe, I would get an intense yellow potatoe picture.
After some research on internet it seems that it was a common problem that has been fixed last year, so is there anything I can do to fix that ?

If it is fixed, maybe it's worth opening the photos on a PC to see if the color saturation is only on phone but not on actual pics

@beeshyams Good idea, didn't think about it as my color calibration does not seem to be bad, but I'll definitely give it a try !


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Files deleted via mtp still consume space
When I delete a few large files (part of music collection, ~20GB of flac files) during mtp connection (on computer), it disappeared from Android FS, but, according to FS analysis, still consume space.
How to free this space?
FS analysis shows consumed space as "other".
None of visible folders has such big size.
Phone: Samsung Galaxy S10e
MTP driver: gvfs-mtp

still after reboot? for MicroSD cards you can run fsck_msdos -y /dev/block/mmcblk1p1 and delete LOST.DIR afterwards

@alecxs yes, it persists after reboot. And no, it is phone internal storage.

adb push busybox binary to /data/local/tmp and examine occupied space with ./busybox du -cxhd1 /storage/emulated/0


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Unfortunately Google Play Services stopped won't go away
A pop-up that says 'Unfortunately, Google Play services stopped' won't go away on my phone. Everything I've read says to go to settings and then apps but I physically can't, the pop up doesn't go away when I tap the Ok button, it just flickers a little. When I go into settings I can't do anything because the pop up basically shuts down the whole screen and I can't open anything. Is there anything at all I can do to fix this, or is my phone just permanently broken because of this?

In the tag you used, there are a [bunch of questions] (https://android.stackexchange.com/search?q=%5Bgoogle-play-services%5D+stopped) with the same problem and solutions. Go through them and see if your problem can be solved. If solved, please revert with the question that helped so that your question can be marked as duplicate. If not, [edit] question to say what you tried and what happened

I did go through them, and I already said what happened. None of it works because I physically cannot get to the settings people said to change.

Yes, I understand now. Phone can't be used anyway, so try and take a backup of important stuff if possible and factory reset the device (giggle how to factory reset your device)


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How do I access the files on my broken Huawei phone without HiSuite?
I accidentally threw my phone onto the road today and now the screen is completely unusable - fully cracked all over, fully black, light still shines from the back light but there is nothing on screen at all. I want to save my music and photos, but when I connect my phone to my computer I have to use HiSuite to get to my files. As I can't go into my phone and give HiSuite the permission to go through my files, I'm stuck. Is there really no alternative way to get my files back on my Huawei device?
I've done some research and apparently you have to download HiSuite's drivers but not the program - unfortunately I'm not tech savvy enough to understand exactly what that entails. I'm sure there's a simple solution to my problem that I'm missing and I hope you can help me out!

Does this answer your question? Enable ADB and/or change USB connection mode on Galaxy S7 w/ broken screen

it's not that easy. the goal is to enable usb-debugging. if you can get similar device it can help you operate blind, if you do same actions on both devices simultaneously


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Can't enable Developer Mode on Nexus 7 2013 with tapping the Build Number
I am trying to root Nexus 7 2013 and for the purpuse I need to enable USB debugging. As instructed from multiple resources, to enable developer mode one needs to tap the build number 7 times. Did that, plenty of times, but nothing happens.
I saw this other question on the matter, where the case appeared to be that there were multiple users, but in my case there is just one user on the tablet.
About info picture: http://prntscr.com/rmo70x

Please give this solution a try

I don't know if you missed steps following the official process

Just fyi this link is 404

The problem was that the tablet had installed Family Link. Once I removed the account from Family Link, tapping the build option worked.


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Share clipboard data between users on multi-user (secondary space) Android?
Leaving security concerns aside, is there a reliable way to communicate data via clipboard between users on a single device without using network methods? For example just to copy a link in the primary space  and  then access it later via clipboard in the secondary space. App suggestions are welcome.
NB: There is already an option to import/export files,photos etc (but not clipboard sharing)
Running MIUI 9, Android 7

How about Chrome Tab Sync or TabCloud?

This secondary space implementation seems to differ in OnePlus devices. In my Android 10 on OnePlus 6, I can share clipboard between primary user apps, work profile apps, and parallel space apps. However, as expected, clipboards are not shared if user profiles are switched into using settings app.

IIRC SMS can be explored - by sending a SMS to yourself and accessing in other user. I haven't checked

Is MIUI's secondary space an implementation of multi-users or managed profiles (https://source.android.com/devices/tech/admin/multi-user)? // The app you are using to copy data copies text, URI or intent (https://developer.android.com/guide/topics/text/copy-paste#Clipboard)? // Are you able to paste in primary space using the same app you are using in secondary space?

@IrfanLatif In MIUI there is a slightly different implementation of the feature, it is designed for users "to have their own apps, files, folders, photos, and so on", in this case app data and files aren’t shared between users, and one has to import/export the required files in order to access them. I can't paste directly between spaces

@beeshyams that is clever idea, it works even if private messaging is off, I can create a draft a message and can I access the "text" +1

@alecxs thanks hadn't tried that

@Firelord MIUI implementation seems different though since each user as a completely seperate space, and can't even share app data (although you can do it with apps)  max users is 2

@xavier_fakerat good. If it works you can post that as an answer!


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How to have Google Discover language different than the General Settings language?
My initial language was French but I wanted to parameter my Android smartphone (Android 8) to English. So I went to

Settings > General Management > Language and Input > Language > English

So far so good, my phone is in English. But it automatically changed my Google Discover articles in English too (language and sources) and I can't find a way to keep it in French.
I went through Google App options:

More > Settings > Search language : French and Search region : French

The results are still English based. And General settings don't offer to choose Discover languages.
Is there a way I can keep Google Discover in French while having my phone in English?

Did you see this? https://support.google.com/websearch/answer/9507369

@beeshyams, thanks. Yes I did see it, but it isn't exactly the same topic. Your linked topic deals with "other" languages (e.g. Russian, Chinese) appearing among the "normal" language (e.g. English).


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Using USB NFC reader as native from Android Emulator
I'm testing an Android app that uses NFC. However, my actual testing phone does not have NFC capabilities built-in. What I do have is a USB NFC reader for Windows. Is there a way I can open my app on Android Emulator and link the emulated NFC to my USB NFC reader?

Unlikely, see: NFC tag emulation for Android virtual device (AVD)


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Update external installed app from Play Store
Some days ago, I installed an app downloading it directly from the enterprise server. Today, an update was uploaded to the Play Store, but there, I can not see the update button to automatically update the app, I just can open it or uninstall it.
The app is signed with the same certificate and has a newer version code. It is programmed with ionic but I do not thing that matters.
I need a solution to install an app from outside Play Store, while keeping Play Store updating it.
Thanks in advance.

Are side-loaded versions just newer from those in PlayStore or are these versions internal versions that are never released on PlayStore? Because I stil don't see the advantage of side-loading an app when it can be installed from PlayStore as well.

As @Robert rightly said, they could be internal or beta or yet to be submitted to Play Store or submitted but awaiting Play Store approval. Best is to ask the developers citing your concerns

And yet another possibility which I noticed happens sometimes - update button doesn't show. Click back to exit and try again. After a few attempts, it may show

Have you ever once updated the app from the Play Store? If you uninstall the app, can you actually fresh install the newer version from the Play Store?

@Robert The app is uploaded with the same code version to the enterprise server and to the Play Store. I can see that I have the 1.2.0 versions installed while Play Store is showing that the latest version is 1.3.3. The advantage is to install the app on a smartphone without Play Store account, and then, bind the account and automatically get updates.

@beeshyams I will try that. Thanks.

@AndrewT. Yep, I do not have any problem when I install the app firstly from the Play Store, but I need the first installation to be made from the outside.

@camgt The displayed version string is meaningless - it is just displayed but not used by PlaySTore. I am talking about the versionCode in the ´AndroidManifest.xml`. This is the relevant version number.

@Robert Yes, the versionCode is also newer. From 10200 to 10303 specifically.


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How to mount system under super partion?
Google has recently changed the way to mount system and introduced Dynamic Partitions. Previously in a rooted adb shell, I used to run mount -o rw,remount /system to mount system in read-write mode. They introduced a new super.img that contains system, vendor, odm, product, etc.
I have a simple question: How can I mount a system from a rooted adb shell in recovery?
After reading the Implementing Dynamic Partitions guide it looks like I have to

create system partition dynamically
need an entry somewhere where mount point exists
mount the system after the above steps.

I don't know how I can do the first step. As the information on the mounting location is inside super.img meta-data and I am unable to read it.
Anyone can put some more light here?

https://android.stackexchange.com/q/220892

@alecxs any link to modify system system-less way but without using Magisk? I just want to add chmod 777 /dev/diag in init.rc? I read Magisk code but it uses prebuilt-binary so not able to figure out how exactly it patches init.

Moreover, I have tried to unpack ramdisk and modify recovery init.rc but that didn't work. boot.img doesn't have init.rc strange!

I mean on a non-system-as-root device. Seeing the same content as https://android.stackexchange.com/questions/221180/unable-to-unpack-android-10-boot-img-properly here..

On devices with enough disk space one can convert ext4-dedup dynamic partition into r/w system partition.
This can be done

offline on linux computer using (official) Dynamic Partition Tools lpunpack and lpmake for which precompiled binaries are available from (unofficial) OTA Tools
offline on device from TWRP recovery with 3rd party tool super image dumper for which precompiled binaries can be downloaded from XDA super image tools
online on device via 3rd party bash script SystemRW running entirely from /data/local/tmp


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Forcing Android To Update
I have a Samsung J7 smartphone. It's currently running version 8.1 and I want to improve it to Android version 10. By clicking "update" in settings, it says "the latest version has already been installed". What would be the risks associated with installing manual updates?

If it says it has the latest version then no updates are possible, manual or otherwise. BTW Samsung hasn't upgraded that to 10. If you want to upgrade to 10,then you need to root and flash a custom ROM for which XDA is the best place to search

Can I restore My current update after version 10, If I wanted?

You can check on XDA but No in most cases


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com.google.android.apps.gsa.binaries.velvet.app.velvet root application keeps stopping
I have a Samsung galaxy J7 running on android 7 I've been getting this error consistently, nothing in particular seems to trigger this error and i can't find any application with that name.
is there any way i can fix this without factory resetting ?

Your Google / Google Search app is crashing it seems. Try disabling that app and see if it solves the issue. Do note that I can't foretell what effect disabling the app would have in your phone so proceed with caution. Make a backup of important data first.

I was facing the same problem until I updated the google (not chrome) to the latest version.
Try updating the google app once.


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Frequent audio dropouts on bluetooth, is it possibe to increase BT emission levels
I have a Xiaomi Note 7 and AKG Y500 headphones. I experience very frequent audio drop-outs unless I keep the phone close to the headphones (in my shirt pocket...).  The same headphones work flawlessy with my PC. Experimentally, checking at home how far I can go before getting drop-outs I have a lot more range with the PC (at least 8 metres) than with the phone (3 meters tops), so I conclude that the emission level of the headphones could be insufficient (the other hypothesis is that the phone isn't sensitive enough to get the return signals from the headphones).
Is there any way to increase the BT emission level of the phone?
Running Android Pie.

Is the Bluetooth connector of the PC an small USB connector or an integrated one (e.g. in a notebook)? If it is the latter the difference is the antenna which is larger as the notebooks as more free space as a small smartphone.

@Robert Yes, it's an integrated one. But if the phone antenna is less efficient they can send more power to it....

I think the more sever problem is that Wifi uses the same frequencies and in the smartphone the antennas are more close to each other resulting in more disturbances. On a notebook they are usually far away from each other to minimize this type of problems. Disable Wifi on your phone or try this guide and check if that helps.

The problem is more acute when I am in the streets, normally farther from Wifi than at home. Will try next time I go out (in several weeks:))

So you are comparing the Bluetooth quality from your PC at home with the Bluetooth quality of your phone while walking somewhere around? Such a comparison does not necessarily mean that the smartphone has a bad Bluetooth quality. It may simple mean that the 2.4GHz band (which is used by dozens of protocols like Wifi, Bluetooth, ZigBee, wireless video transmission systems, ...) is so occupied out on the street that interruptions are inevitable.

I'm not the only one with BT headphones in the streets... And at home, that bathes in Wifi signals, the BT signal from the phone is much more disrupted than the one from the PC (tried the suggestion to disable wifi on the phone, BTW).

Then it may be that Bluetooth on the PC is a class 1 or 2 device (100/50m range) where as the Smartphone has only a class 3 Bluetooth device (max 10 meters). AFAIK the Bluetooth signal class can't be changed, it is a hardware property.


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Bluetooth Speaker Controls Too Loud and in Too Few Steps
I bought a set of Dali Zensor 1 AX speakers which has a Bluetooth connection. Playing over the 3.5mm cable works perfectly and the volume can be nicely adjusted from the phone. The phone has 31 volume steps, with 0 being muted and 30 being 100% volume.
However, when I connect the same phone via Bluetooth, there are only 4 steps of volume control:

0 on phone: muted
1 on phone: 33% speaker volume
2 on phone: 66% speaker volume
3 on phone: 100% speaker volume

Steps 4 to 30 are all there but because the volume is already at 100% on step 3, they do nothing.
Having only 3 controls is extremely unpleasant as it's unlikely the volume I want to listen to is one of those 3 and to make matters worse, most often when I connect to the speakers it's higher than step 3 and just blasts whatever I play at 100% for a few seconds while I try to turn it down.
I've tried connecting an iPhone to it via Bluetooth and it works perfectly fine. I've also connected multiple Android phones (OnePlus 5T and OnePlus 6T) and they both show the problem.
How can I get my Android phone to spread the Bluetooth audio volume control across all the steps rather than just the lowest 4?

After a couple of hours of searching I found the fix:

Enable Developer options if you haven't yet (instructions can be found online).
Open Developer options.
Enable the Disable absolute volume option.
Enjoy listening to music at whatever volume you like.

Here are the details for this option:


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Can I install TWRP with stock recovery via apply update from sd card if I change the file to update. Zip? I'm on zte trek 2
Can I install TWRP using stock recovery and sd card?

not on stock recovery, but with SP Flash Tool if yours has Mediatek chipset

Do I have to be rooted and how do I find out what my chip set is? Thanks for answering

Found out I think it's qualllcom snapdragon

rooting is recommended because this way the necessary modification (disabling dm-verity) are done already, but root is not required for SP Flash Tool

Cool thanks any way to root without PC or kingroot? I tried that and kingroot. Don't work.

If I was rooted I could install TWRP no PC no problem. I don't have access to a computer only wifi

forget kingroot or other rooting apps, rooting is only possible with unlocked bootloader (forces factory reset) which is only possible with PC. with this app you can figure out chipset http://play.google.com/store/apps/details?id=ru.andr7e.deviceinfohw

Ok thanks allot !

Root is definitely needed for so flash tool

rooting is a colloquially description for the availbility to execute apps or commands with root privileges (usually a superuser app is installed which manages app permissions based on your choice). flashing partitions (for example twrp custom recovery) does definitely 1) neither require rooting 2) nor won't root your device. for rooting you must install Magisk or SuperSU which can be done via TWRP or by flashing magisk patched boot.img from fastboot (or flash tool)

I know this. I need to know how to install TWRP without PC or root. Is it even possible?

if your device is Mediatek you can root with bootless root method on locked bootloader without PC https://forum.xda-developers.com/showthread.php?t=3922213&page=101

(Mediatek) SP Flash Tool / (Qualcomm) QPST is software for PC only

if you have another rooted device with usb otg support you can install fastboot for arm and connect two devices with usb otg cable. with this you can unlock bootloader and flash from fastboot without PC

Thanks for help and sorry to say this is my only device


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Firefox on an Android tablet
I have just bought an Android 7 TABLET for convenient browsing and reading research (3-4 hours to kill once a week and more, free WiFi available) and for stand-alone navigation (GPS capable).
No SIM slot, no Google account. Tablet has WiFi, USB-2 OTG, micro-SD slot and I've got a spare U1 32Gb card.
I want to install Firefox so I can quickly synchronise bookmarks with my laptop (Linux Mint 18.3LTS).
Can this be done via a conventional download to either tablet or laptop (whichever is simplest)?

If the table has Google Play, you can download the Firefox app from the Play store.

On Mozilla's official wiki page for the Android platform they have a direct link to download the apk that you can install to your device manually without access to the Play Store through a Google account.


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How to add a simple file on /system without actually modifying it but with using kernel sources?
From the time system-as-root came, developers have rooted different devices by patching the Magisk su binaries in the kernel. I want to understand how exactly they have done this so to start from basics, I want to test creating a file on the /system but with kernel sources.
I have already built a permissive kernel. I am not able to figure out where to start doing what?
Anyone can guide me in this?

"by patching the Magisk su binaries in the kernel". How an su binary can be in the kernel? su is a userspace tool which communicates to kernel through syscalls for privileges elevation. I think there's some problem with your understanding. Do you mean boot.img by saying kernel? If so, Magisk always patched boot.img since early days, even before SAR.

I think I didn't understand the concept of a custom kernel for system-less rooting. In system-as-root devices, peoples have rooted it without touching the system. As there is no ramdisk in the boot.img so I thought they have customized the kernel to overwrite the required things on the system when device boot. But if su is not in the kernel then how they patched it without modifying the system and boot.img. Please clear my doubts, I shall be very thankful to you.

Rooting a device without touching /system (system-less root) existed even before system-as-root was introduced. System-less root was adopted at some later stage by SuperSU but Magisk has always been system-less. Rooting by modifying /system was never officially supported (AFAIK), though it works. How system-less rooting works on non-SAR and SAR devices is partially explained (at least basic concepts) in my answers to How Magisk works? and How to disable dm-verity?.


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Cannot get location if using GPS only
I have just factory reset my phone.
To get the location, there are 3 options:
High accuracy, Battery saving, GPS only.
For any app that would use/show my location, I get no location if using GPS only, even if I wait for several minutes with the phone in the backyard.
I do not recall checking this since a long time ago, but with my old phones (ca. 2010), which I think used pure GPS with no assistance, location worked wel..
Is this behaviour expected?
Can GPS location be underperforming for some reason?

In a different context, this app was recommended to help get the initial fix of satellites. See if that helps you. I haven't needed to try that


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How to get the information about my USB bus, version on Android 9
On my Android 5 the app Device Info HW shows what version of USB I have and whatnot, on my Android 9 the info is blank, why?
Is there any other way to check it somehow?

May be the used USB chip is unknown to the app or it is no longer possible to access those info on newer Android devices.

Seems there's a lot of things that are impossible to access in Android 9! Any way without an app?


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How to enable optical/LED notifications on Android 9/Fairphone 3?
I'm used to the LED indicator light on the front for unseen notifications from Moto G2014/LineageOS 14. I searched for 10 minutes for a setting and I think I revisited all of them. There is however a LED in the front which indicates the charging progress. I assume it can be used for notifications as well.
There're a few forum post which claim to explain how to enable it, but don't.
The Fairphone has Android 9, updated yesterday.

This seems to be a known bug of the Fairphone 3.

@Robert Thanks for the link. Is there a bug report where developers work on? It's in general impossible to retrieve any information from forum posts. I'd accept it as an answer. If there's none you can post the link to the forum post as well as an answer.


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Apps Not Downloading/Updating After Factory Reset
I have a problem with my Pixel 3.  I was having an issue with Google Play not updating any of my apps over the past couple days.  After trying several things, including:

Clearing Cache and Data
Force Stopping Google Play
Disabling Google Play Updates

None of those solutions worked.  I decided to do a factory reset on my phone.  However, once the phone restarted, the play store got stuck in "Completing Setup."  It was trying to install an app, but it said "Waiting for Wi-Fi." However, the phone was definitely connected to my Wi-Fi, and I have a strong and stable connection.  I decided to just cancel all the pending downloads and updates, but that didn't seem to help, as I still can't install or update any apps if I try it one by one.  I either get a "Waiting for Wi-Fi" or "Downloading..." message for the app, and nothing else happens.  I have no idea what to do next.  Does anyone know of any possible solutions?  My phone is not rooted, and I would prefer solutions that don't require that if at all possible.


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Bulk Delete Apps
On my phone (LG V30+, Android 9) I've noticed when I drag an app from my home screen into the trash, it doesn't delete the app but simply disables it. If I go into settings and find the app, I can fully remove it by pressing uninstall.
(I'm talking about apps I've downloaded, not pre-installed).
When I'm passing through airport security, I have several apps I need to actually delete completely, I can do this by going into settings for each app and choosing uninstall, but this is even more tedious than deleting from the home screen.
Is there any way to bulk delete apps that are disabled.
(ideally without installing a tool to do it, but I'm guessing no such feature exists natively)

There are tons of apps on play store that do this. Search for " bulk delete apps" and picked up the one with Highest rating (https://play.google.com/store/apps/details?id=com.hrsali.uninstaller). I didn't test any

As beeshyams wrote. You can find some such apps in my corresponding list ordered by rating together with the details on which of them are rather "tracker ridden". The one @beeshyams recommended seems to be a good choice and completely tracker-free.

@Izzy Thanks for checking they out. I just saw last update +rating

@beeshyams always a good idea to copy-paste the package name to Exodus. Easily done, too :D


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How to install Twitter on Galaxy Tab 3
I've just done a factory reset on my Samsung Galaxy Tab 3, which is now running Android 4.1.2.
I've been to the Google play store and tried to search for Twitter app, but it doesn't show up.
I've found it in a search and followed the link, but it's showing This app is not supported on your device.
All other apps like Facebook, Instagram, Skype, etc, etc, show up and install fine, but not Twitter. Any ideas why?
Note : I've tried to update my android software, but this says there is an error and it can't be installed.

The latest version the Twitter app supports for Android 4.1+ is 6.39.0 (March 22, 2017).
Play Store prevents app installation if it is incompatible with the device (as of January 2020, AppBrain shows the minimum of Android 4.4+).
One way to install old apps is by downloading the APK and installing it. The APK is available on APK Mirror. The device also needs to be set to allow installation from unknown sources.
Note that even if it is possible to install the app, there is no guarantee that the app will work smoothly since it also depends on the current Twitter infrastructure. In that case, it is also possible for some browsers to create a shortcut on the home screen to the Twitter site.

Thanks Andrew, but I don't particularly want to install the old app, I'm looking at getting the latest official Twitter app, as I've done with Facebook and instagram ( + several others ). How can I update to Android 4.4+?

@WSix Samsung Galaxy Tab 3 7.0 only supports Android 4.1.2 officially. Thus, you have to rely on custom ROM for newer Android. You can refer to this question to find custom ROM, or this site for more information.

Thanks. I'll look into trying to upgrade via ROM, but I'm not sure about doing it just for running Twitter. Maybe I'll just stick to the online version - or use tweetdeck in the Firefox App.


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Will a hard reset remove any malicious software/viruses/malware from my Experia X?
I suspect my phone is compromised, and if a simple hard reset will fix all potential problems, I'll do that. Will that solve all potential problems? I'm concerned that the guy who just replaced my phone's screen (had my phone's password) installed something dubious. He said he also adjusted or replaced one or two other components, but did not charge for them.
When I got the phone back it was fine, but an hour later when I unlocked it it was reset, no apps, photos, etc, and the keyboard had changed from English to English-&-something-pictographic, maybe Chinese. I restarted the phone and it looks normal again. But the battery is draining at twice the speed it normally does, which leads me to suspect something is happening in the background.

password is not required for replacing touch screen. boot in recovery mode perform system integrity check. if nothing is modified and bootloader is locked, factory reset will fix your software issues. but bear in mind problem may hardware related

nevermind, seems sony has no recovery mode. but there is safe mode you can try for few days and compare battery drain

Does this answer your question? Can a Factory Reset fix Malware Problem?


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Will a CDMA carrier's LTE work on a GSM-only phone?
More specifically, I'd like to know if a Sprint-based carrier (Tello) will work on a Xiaomi Redmi Note 8 (M1908C3JG).

No
Will my phone work says Redmi Note 7 does not work on Tello.
Readme Note 7 has more operating frequencies than Readme Note 8 (see Network section-
Note 8 frequencies are a sub set of Note 7 ) but Readme Note 7 doesn't work with Tello.
If you switch carriers, you have a 25 % coverage as indicated here, but that would need you to do homework to find out which carrier and if that frequency (s) are used where you operate


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Android: Change file-contents under /system/etc with Magisk
I would like to change a configuration file under /system/etc or /etc. Neither of those locations are writeable and I can't make them writeable with a rw remount. The device is "rooted" with Magisk.
How can this be done?

magisk is systemless root method. modifying system will break with all benefits magisk provides, and most likely trigger dm-verity protection. you should use bind mount overlays instead. however, on system-as-root devices you must remount rw / instead of /system


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Nokia 7.1 won't boot after Google Security Patch update
My phone (Nokia 7.1, Android 10) downloaded a Google Security Patch update over night and asked me to reboot the system for installing the patch. But after the reboot, it said that the system is corrupted and the phone needs a factory reset. I don't want to lose the data on the phone.
I can get the phone into Download mode and communicate to it via fastboot and I tried to use adb to sideload the original Android 10 image (29ad19....zip, which is build 4_08D), but it won't let me install it because the build timestamp is older than my current system's build timestamp and it refuses to let me downgrade.
I tried re-installing the latest security patch (4_08F) from here via adb but the system says that this patch was meant for 4_08E not 4_08F. This is confusing because if the system had trouble installing this patch in the morning, it should have stuck with 4_08E, right?
My questions to the community are as follows:
1) Can I force my phone to downgrade and install an older system without losing my data? If so, could someone point me to the correct instructions?
2) Are there newer updates for Nokia 7.1 that I've not found which I should be trying to install?
Thanks!

Question 1. Sorry, no because of rollback protection that was introduced with Android 8. Question 2 it's best to check in device forums, XDA, reddit and such sites which are dedicated to discussion on your device.

Just had this happen to one of the two nokia 7.1 phones that we have. Not a good experience as both of them have been sent back for hardware issues in January now this. Nokia support blames Google for the crashes with this update.  I know it is android one but i still thought the vendor controlled the updates and has to test it for each of their phones.

It is a fairly common sight on a "Nokia 7.1". Did you try this tutorial already? The slots can essentially take you 1 version behind and you can then try booting. Sometimes that works (as in the comments sent by many). And since you want to preserve your data, there's even lesser chance that it will work, but it can.
If not, what you can try is to go one version behind (by changing the boot slot -- fastboot --set-active=a or b as needed) and then try to sideload the latest update via recovery again. As with updates, they can only take you forward and not backwards. The 408F is the newest update for the phone and you cannot find an update newer than that. When you'll change the slot, you'll be on 408E and then the 408F should install just fine.
As about your question about how the update got installed, it's the beauty of A/B devices, but the issue isn't with installing the update, it was done successfully. The issue is more of the device not managing to get its encryption running after the update has finished installing. The system feels that the update was successfully installed, but the phone clearly knows that something went wrong with the data encryption/decryption process.
In case changing the boot slot and then installing the update doesn't help, then you're left off requiring full firmware installation. You can send to Nokia or buy a remote flashing service. If you still haven't done a reset until this point, then the service can try to help bring your phone to a bootable state where you can backup your data.


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Work account disable automatic home screen shortcuts
(LG v30+ android 8.0.0, app drawer enabled)
I found out how to use work accounts to get another version of apps without needing app cloner (I don't need the fancy things it does and it's kinda shady). But the play store it has automatically adds apps to my home screen. The personal play store doesn't. Here's why this is weird: the setting was moved from Play Store to home screen settings (I've checked both places and can't find the setting but that's what I read). This means the two should behave the exact same in this regard. Any thoughts?

I might be misunderstanding this part: "Here's why this is weird: the setting was moved from Play Store to home screen settings (I've checked both places and can't find the setting but that's what I read).", but have you checked the settings from the work profile's Play Store app?

Yes, both settings are identical in not showing the check-box that most guides refer to