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Unable to open link with native app in Android
I have this problem on my Marshmallow device. My issue is with select apps on my device, particularly the Expedia app. I can get some native apps to work, including Shazam and Google apps (Youtube, Maps, Chrome, etc). This only works from Firefox, by long-pressing the link and choosing Open with [app name].
I have enabled the app settings to "Open in this app" under
Settings -> Apps -> Configure Apps (gear icon in top right) -> App links -> Expedia -> Open supported links. Expedia links, including www.expedia.com, are in the supported links list.
For Android system settings I do not have a section called "Default" under App Permissions. However, under Settings->Apps->Configure Apps (gear in upper right)->Default Apps I have 4 options "Assist & voice input", "Browser app", "Phone app", "SMS app". There are no other options. No default browser is set, but the phone and SMS apps are set.
Despite this, I do not even see the option of opening with Expedia when
Using "Open Link With" and "Best Open With" apps do not work. For example, when using the Open Link With app, I only have Firefox and Chrome offered as apps to share with.  When I disable Browsers as opening options (a feature in Open Link With) and I try to share with the app, I receive the message "No other application found to handle the URL" from Open Link With (see https://github.com/tasomaniac/OpenLinkWith/blob/master/app/src/main/res/values/strings.xml).
I tried rebooting my device. I tried reinstalling Expedia. I cannot update my stock ROM beyond Marshmallow. I am very hesitant to Reset App Preferences because I'd have to go through them one by one to reassign permissions as appropriate. For me, Chrome is more restricted than Firefox, e.g., I cannot open Youtube links with the native Youtube app through Chrome, but can with Firefox by long-pressing the link and selecting "Open With YouTube App", as similarly noted above.  I also have the same problem using Chrome on a Samsung tablet with the Expedia app installed.
Can anyone verify they also have this issue on Android Marshmallow?
I understand that some apps may have their "intent filter" programmed incorrectly (from Force link to open in app not my default browser).  Can anyone verify if Expedia has this programmed incorrectly, or if is it a Marshmallow issue? If there's a solution, any suggestions (aside from reverse engineering, reprogramming and rebuilding)?


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Is there an app where you can control your phone w only hardware buttons
My phones touch screen is broken, it only responds for like 2 secs everytime i turn on with power button.
Need somethin like double press vol key equals swipe left, and other key is right. Hold for swipe down up.
Thankss

Xposed Edge and Xposed Additions app can do that, but they require root access and Xposed Framework installed.

If your phone has OTG,

Plug in a USB Mouse & Keyboard.

I don't think so.
Use bluetooth to connect something like gamepad or keyboard to control your phone, but I should have changed screen or bought a new phone.

source: Stack Exchange

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

sort: votes


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Problems after rooting with TWRP and SuperSU
I'm having some problems with my Samsung A3 2016 (A310F), on Android 7.0.
I rooted the device using Odin3 v3.12.3 and flashed TWRP 3.0.2.1 SMA310, and then installed SuperSU v2.76 using the TWRP that had been installed.
Unfortunately, whilst the phone had become rooted, there were a number of problems with the device. The Wifi button became stuck and greyed out in the "off" position, the camera wouldn't work, SD Card storage is not showing, and when connecting the phone to my PC via USB it doesn't open Explorer like it did before rooting (I can see it in Device Manager, but it is impossible to access the phone). Furthermore, the phone cannot access the Internet using mobile data either.
I have tried to clear the Cache and Dalvik Cache via TWRP, and reset network settings, neither of which has worked.
My research has suggested that perhaps SuperSU v2.76 is the problem, and that I would need to use SuperSU v2.82. However, I cannot find any way to get SuperSU v2.82 onto the device.
I suspect I need to start from scratch somehow, but I'm very new to Androids and rooting and I'm not sure what to do.
Can anyone please give me some advice?

If you can still access TWRP, try flashing 2.8.2 from the links here

I can still get access the TWRP menu, however how do I get 2.82 onto my device? My PC no longer picks up my phone when connected via USB (it did prior to rooting), and the phone won't connect to the internet via mobile data, nor does the phone recognise the SD Card.

Have you tried mounting the SD inside TWRP itself?

In case anyone else has the same issue, I managed to solve the problem.
I unrooted the phone using the option in SuperSU, and then flashed the device with the stock firmware using Odin.
This fixed all the problems, and allowed me to successfully connect the phone to the PC via USB.
It turns out SuperSU was problematic, and that Magisk is a better solution for this particular firmware.
So I placed the latest Magisk build on the phone via USB, then used Odin to put TWRP back on the device. Then, from the TWRP Recovery menu, I installed Magisk.
After this, I installed Magisk Manager from GitHub.
The phone was successfully rooted after this point, and all functions are working properly.

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


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Send fake sensor value to an Android real device
Is possible to simulate an event on a Android real device?
More precisely, I want to test an application which does something if a particular temperature value is detected. Is there an adb command, or somethings else, to send a fake sensor value to the device in order to check the application behaviour?
Thanks.

If the device is rooted you could try the Android Event Injector - not sure if this old project is still usable on recent Android versions.

There is an Xposed module which can do so. https://forum.xda-developers.com/xposed/modules/mod-disable-proximity-t2798887/post53766106#post53766106#. Also see https://stackoverflow.com/q/3921467/4720957

Unfortunatelly my device is not rooted hence I can not use Xposed.

Specifically what sensor ?
If you are simulating a screen press, then yes.
If you are simulating a temperature for your CPU, probably not.
It depends on the level of safety In my opinion, if your just mocking GPS locations, not a big problem... However if your trying to mock temperature readings or something that might cause hardware failure's... it may not be possible.

Unfortunately I would be interested at temperature and pressure sensors.

I'm fairly sure for user safety reasons, that this is the hardest form of sensor data mocking.

For example, a CPU set to 0° temperature, could potentially expose your lithium based battery to unnecessary heat, that could potentially end in a life threatening situation or an extremely dangerous one... Lithium mixed with oxygen creates explosive gas, the heat source ( CPU ) is usually directly under the battery compartment and ... If the correct situations are met, goodbye hand, or face, or stomach... i personally was interested in a CPU Cooking software that I was trying to build for tests, however it's extremely hard to mock temperature readings... Pressure readings may also be risky

I understand the subject, but I don't think that the environmental temperature may be cause this problem, but i don't understand why Google doesn't provide some way to simulate these values as well.


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Audio files disappeared from S8!
Don't know how long ago the files disappeared or whether it has to do my the Oreo upgrade recently; or using the phone's "fix now" button to delete leftover files; but the audio files that were less than a minute long in length have disappeared from my S8.
I always used Solid File Explorer to search for the files when I wanted to listen to them but today when I searched for the files they are all gone!!!
Freaked out as the files cannot be downloaded again as they were deleted from sites long time ago.
So what caused my files to be deleted? I want to avoid this in the future.
S8 on Oreo

If you want to avoid it then back stuff up (at least two backups).

@CmosBattery but why is the "fix now" feature on Oreo deleting files I downloaded to keep?!  Thought it was for garbage files. Figured out that was the cause & have now stopped using that feature.

I've not lost files from fix now on Samsung devices. Fix now can reset app(s) such as Flipboard (left from home) - suppose if the files were attached to an app in a similar way that fix now could remove them then perhaps that's it.


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Is the Samsung Galaxy S9 encrypted by default or can it be encrypted?
Basically, I travel a lot with my phone and having it encrypted would be very useful in knowing that a crook wouldn't be able to gain access to my data should my phone be stolen.
I heard from one source stating that all devices running Android 6.0+ must be encrypted by default in order to be certified.
However, I also heard from a Samsung representative that they removed the option to encrypt the internal storage after Android 7.0.
What's the actual case?

It has to be encrypted by default. What the Samsung rep refers to is probably by removing the choice the option to encrypt is not left to user (being default). You can check yourself  device encryption status as mentioned here https://android.stackexchange.com/q/96125/131553

I believe you are seeing correct sources on both accounts.
Android 6.0 made it compulsory if you are using Google Play Protect, this will show Certified Device in Google Play, You open the Play Store and go to settings, then scroll to the bottom, it will show you the certified status - therefore the encryption status.
It makes sense to remove the obsolete option past that point.. Android 7.0.
It may have been an unintentional oversight or the developers still required the option to automatically return true.


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Rooting ASUS MeMO Pad (Nougat 7.1.2)
I'm a freshman that just started working as a research assistant for my school's computer science department. My advisor is having me root some Asus tablets and install Lineage OS 14.1, and I have been having some issues. I have tried a lot of different softwares such as Framaroot, Kingoroot, One-Click-Root, and basically anything else I could find, and everything either wasn't compatible/wouldn't work or cost like $30. Thanks in advance if anyone has any advice!!

Whats the model number of the memo pad?

I remember the number K013 but not sure if that was the model number or something else. I don't have it with me currently, but I work in like an hour so I will check then!!

Sorry for the wait there but it is K013!

Look for an unofficial TWRP custom recovery for the Asus  k013 on like XDA flash it through the bootloader. Next, look for the latest version of Magisk systemless root and flash it through TWRP.


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Android malware debugging
To understand a malware better when it is running on a device, I would like to get a view of what is happening in the background. For instance if a malware is loading a page using LoadUrl, I want to see the value of the URL being loaded. I felt dynamic instrumentation tools or debuggers will be useful for this but I am having a hard time to get it to work. Any tips on what tools/techniques will help me achieve this  or should I research more on the said methods above? Kindly suggest.

Have you tried Frida? If supports hooking of Java/DEX and native methods. As long as the malware does not use anti-debugging techniques you should be able to attach Frida to it.

Its a good option but I want something generic that I can use for multiple malware. As per my understanding with Frida you need to specify specific methods that you want to overload, which means you need to create a tailormade script for every malware. Please let me know if I am wrong here, I would like to try otherwise.

You are only thinking of the app, however a running app always contains the runtime libraries plus it contains the Dalvik native libraries. Those contain hundred of class and methods that never change (assuming you are using the same or identical device).

True, I wanted to focus on the malicious content of a malware. True that a malware can use native libraries but my focus is more towards the malicious components. However getting more information via native libraries is also a good thing. What do you suggest ?


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Cannot decrypt partition with TWRP
I have a S9 with LineageOS on it and I cannot mount the data using TWRP. I had MobileIron on it but uninstalled that as it started crashing. I'm not sure if the two are related or if there is something else up..


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Looking up words easily in the dictionary
Would it be possible for an entry to be installed on the menu that shows up when I highlight a word, so that I can look up the word on a dictionary, for example from an installed app such as Merriam-Webster dictionary. The app could show the definition inside a bubble.
If course, the installed app would have to support this, and install the behavior onto the operating system UI.
How can I achieve the behavior I'm looking for?
Thanks.

This dictionary adds an entry in the context menu to directly search a word when highlighted. https://play.google.com/store/apps/details?id=com.vaibhav.dictionary&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Denglish+dictionary+android&pcampaignid=APPU_1_Wj5wXMCJFYb4rQGIpJXwDQ

There are many as you can see here. Last one on the list I used for a while and is good. But none of them can let you select a dictionary of your choice - they have their own inbuilt dictionary


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Only few files are visible from 5TB exFat external hdd on Galaxy S8+
I have a 5TB external storage with many RAW photos and videos. They are sorted by dates in folders and the hdd itself is almost full.
When I connect it to my PC, it recognizes all files and directories.
However, when I run it on my Android phone, only few folders and files are visible. Most directories appear empty or doesn't even show up.
Does Android have issue recognizing larger HDD drives? It is a seagate 2.5 inch drive with 5TB storage formatted in exFat format.


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Decrypt userdata files using device and complete filesystem dump
My Oneplus 5 got softbricked (touch input completely stopped working some time after an update and nothing could be done about it). This happened soon (a couple of weeks) after it was updated to stable OxygenOS 9.0.3 (first Pie-based ROM for my device), bootloader was locked.
It was not easy, but I managed to get images of all the phone's partitions via Qualcomm EDL mode. Then I factory reset ("unbricked") it using "MSMDownloadTool" provided by Oneplus (which uses EDL as well).
Needless to say, most of the extracted userdata partition (which should contain all my files, e.g. photos) is encrypted. The encryption method is FBE. I also used a PIN lock (which I know).
What I am trying to understand if it possible to decrypt the files. My very basic understanding is that this involves some keys specific to my unit (so can only be done on the device itself?) and also some keys found on the userdata image in a "unencrypted" directory and some further keys which are encrypted using the former.
In some initial attempts to decrypt the data I have since unlocked the bootloader and rooted the phone.
So my questions are:
1) Is this theoretically possible? Could the modifications to the phone's firmware I have already done wiped something necessary for decryption, which was not stored on disk (in userdata or another partition)?
2) Can anyone provide any manual as to how this could be approached? I have found a manual for Huawei Mate 9 on xda-developers but could not
follow it (vold directory missing in misc, probably encrypted).
3) If not, what documentation / source code would you recommend studying?

The AOSP documentation says that the keys are held by the Trusted Execution Environment (TEE). And the TEE is re-initialized by a factory reset (or in detail on the first boot after factory reset). I am not sure where the TEE data is stored but it seems to be nearly impossible to get the TEE into the correct state to be able to access the decryption keys.

@Robert Do you mean that TEE data is stored somewhere outside the devices main flash memory? Also, could you provide a reference regarding TEE being reset on first boot?

I am not an TEE expert, but from my understanding the data is stored in the same flash as user data but encrypted in a way only the TEE can access it. The initialization/enrollment of the TEE is documented here: https://source.android.com/security/authentication#enrollment

Thanks for the link. Also, as said, I do have a dump of the phones entire filesystem, so if TEE data is in one of the partitions, I could just flash it back onto the device (that alone would likely not be enough though). Incidentally, I do see some partitions that may be relevant ("tz", "keymaster", "keystore") but none of their contents actually changed after the factory reset.

Related: Data recovery from encrypted phone based on glitches in the encryption? and How to get data off a completely dead Android phone?


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How to fix settings not working?
I am currently using lenovo A1000 android phone. When I try to open it's settings, it just gives a blank white screen and nothing else. Other apps are also not working such as YouTube, Google play and night mode. Please tell me how can I resolve this issue soon before all the apps would stop working.

How did this start? Did you install some app or made some other changes? Usually a factory reset is recommended in such situations.


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WhatApp Profile Pictures from Contacts
I have a Samsung Galaxy S8+. I have a few contacts who have not set a profile picture within WhatsApp. Previously, it would automatically substitute their lack of profile picture with whatever picture I had set for them in my Samsung Contacts app.
Yesterday, I have wiped my device and upgraded to the latest Android 9.0 Pie Beta (build ZSAI) and I've noticed in WhatsApp, this no longer happens.
Despite the contact having a picture in my Contacts app, WhatsApp just shows a white person on a grey background.
I've looked through the settings and permissions. I can't see anything obvious, but I expect I'm missing something silly.
Any suggestions?

Samsung Galaxy S8+
SM-G955F
Android 9.0
Build number PPR1.180610.011.G995FXXU4ZSAI
WhatsApp version 2.19.34

Thanks!

WhatsApp really does that? I mean it can substitute the user profile with the one in the contact app? I think you don't see profile pictures of contacts who don't have you in there contact list (if enable in their settings)

These are definitely contacts that have me in their contacts list (mostly my Mum and girlfriend :) )
It definitely used to do it before. It would only do it if the user did not have their own profile picture within WhatsApp... so it used to be WhatsApp profile -> Contacts profile -> Blank image, in that order.
Maybe it's an old feature that doesn't exist any more, but it was definitely working before

WhatsApp has removed that feature for some time now (i.e using the photo from phone contact). When you upgraded Android, you must have also downloaded the latest version of WhatsApp.


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Can adb sideload be used to flash/install ZIPs using 'stock' recovery/fastboot?
TWRP isn't supported for my WE_T1 Android Nougat. Can I still use the adb sideload function to install ZIPs using stock fastboot?

adb sideloading works with adb, not fastboot. Both uses different protocols and expect different data to process. Fastboot compatible archives (or ZIPs here) contain fastboot compatible images and a simple script to flash them. Recovery compatible ZIPs are usually complex as they employ scripts with various checks and preparation before flashing anything.
In addition, stock recovery requires ZIPs signed by your OEM, otherwise, they would fail during a flash. Fastboot doesn't employ such signature based check when flashing as long as bootloader is unlocked.
For understanding you can compare fastboot images with recovery flashable images from here and here.

Could you kindly tell me if I can install zips using adb sideload "Without a custom recovery" in my android?

No, you cannot, unless the zip is officially released by your OEM.


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How to block spamming SMS
I am using a MOTO-G6 and it runs on Android-8.0.0. the default SMS app is Google-Messages.
I am getting tons of annoying spam SMS from contacts with no numbers.
It just shows a name for example:
VKHLTCHK
HPFAMDOC
HPYESBNK
...
...

I can block these contacts, But I still do receive sms from these over and over again.
Has anyone have this kind of problem. How do you solve this? I am  willing to buy a paid app if it exists.

Does the content of the spam SMS varies or remains more or less same? If there are certain keywords which exist in all of those messages, you can setup a filter  in MacroDroid app to detect such spam messages and remove the notification immediately before you are notified. It doesn't remove the sms though, so it would be visible when you open your SMS app.

Please enable spam protection in messages app. Open messages, settings, advanced, spam protection and enable it. And when a spam message arrives, report it. Such messages won't show further. If you can't see such settings, update messages app to the latest.

@Firelord Nope. The content is always same.

@RahulGopi : I am talking about SMS app https://play.google.com/store/apps/details?id=com.google.android.apps.messaging&hl=en it does not have spam protection feature

I am also using the same messages(version 4.0.054) app on my moto x4(android pie). I think the features are OS version independent, that means features are same on every android versions.

Try replacing your stock SMS app with Textra (free). It has a simple & effective blacklist feature. Just long press on the offending text message, tap Blacklist, done.


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Samsung Galaxy S5 deletes email from server
Just recently I have noticed that emails downloaded on my Galaxy S5 are being deleted from my server so I cannot view them on my laptop.  How do I change this?

Don't use POP email protocol with configuration to delete when fetched. IMAP is better if supported, and usually isn't default configured to delete after fetching.

The most probable answer is that you have your tablet configured to use POP3 for email instead of using IMAP.  You can check this in the account section of your email app.
Using POP3 to retrieve your emails deletes them from the server whenever they are downloaded to your tablet.  Using IMAP synchronizes your email app with the server, so that the emails are in both places.
If this is correct, the simplest solution is to delete your your email account from the app and then set it up again correctly, using IMAP instead of POP3.  Your email app may be able to simply edit the settings of the account to use IMAP instead: however, depending on what app you are using, this may be the equivalent of deleting an account and adding a different one, I.E., you might still lose your already-downloaded emails.
Please note that you should back up all your emails on the tablet first, as this solution may delete them from the tablet.  (And, since you are apparently using POP3, they will already be missing from the server.)


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Replace custom ROM system app with stock variant
I am running Resurrection Remix Oreo (8.1) on my Samsung Galaxy S7 (herolte). This has been my preferred custom ROM for years now. However, I have an annoying problem: the SIM toolkit[*] application does not work properly. It used to work on the phone I had before (Galaxy S4 with RR 8.0).
For testing purposes, I switched back to stock firmware and gave it a try. Everything worked fine. Thus, I would like to copy the original STK app to my custom ROM. I also tried RR Pie (9.0) and original LineageOS 16, without success.
However, I cannot just copy it over. It somehow must be signed correctly. This is my first problem. Can I sign it with the public android platform key? Or would it have to be signed with the RR developers' private key?
There is another problem: The app is made for Android 8.0 (API 26) whereas I am using Android 8.1 (API 27). I might be able to change the manifest using apktool or something similar.
I would appreciate any advice.
[*] I use this as an authentication method for my online banking platform. The bank sends a message to my phone telling the SIM card to pop up a dialog where I have to enter a special PIN (not the normal code to unlock the SIM card). The phone then sends back a message to my bank telling them to log me in. What currently fails is the "OK" button. Pressing it gives absolutely no reaction. In more recent versions of LineageOS, there is also a "Cancel" button, but it does not work either.

Have you checked adb logcat if any errors/stacktraces are visible when you press the OK button and nothing happens. If yes you could file a bug report for LineageOS or RR so that the bug can be corrected.

@Robert I have filed a bug report to LineageOS for the original version. I did not file one to RR, because they just fork Stk from Lineage. Catlog does not show anything useful though, especially nothing upon pressing the OK button

@Philipp Imhof Have you got anywhere with this? I'm having the same problem. Samsung A5 on Lineage OS

@klinghust Unfortunately not. I have switched to a Samsung based custom ROM. As a side effect, the camera is much better than before and Bluetooth works better as well.


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How can I stop my apps from updating automatically (Google Play Store settings do not work for all apps)?
I have set Auto-update apps to "Don't auto-update apps" in Google Play Store.
That works for the majority of apps (except the Play Store itself).
However, according to my security software (Avast), some apps, installed after I set this setting, still update in the background, for example the YI Home camera app. "Enable auto-update" is not overridden for this app on its own page in the Play Store.
Other apps have similar behavior. Is there a way I can stop this rudeness for all apps? Thank you.

don't know if this helps you, if you're rooted you can use titanium backup and freeze the play store and services, no updates then and unfreeze when you need it (I do this on my phone)

If the apps are auto-updating than the moment you would freeze Store and Play Services it could update the app again. Furthermore, some apps are hopelessly dependent on Play Services to function.


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Whatsapp local backup
I recently installed again whatsapp in my new smartphone android but the local backup doesn't work automatically. Today I pressed back up for the google drive backup and it also included the local backup. But for the past weeks whatsapp never did the local backup automatically. Do you know why?

Most likely your phone is a bit aggressive about killing the background tasks. So, WhatsApp is unable to wake up the phone at its usual 1-2AM slot to perform a backup. A lot of phones are doing this to ensure a better battery backup and standby.
Do note that notifications may still flow even when WhatsApp is not allowed to do tasks related to backup in the background. But most of the times, they are either delayed or only show up when you first turn on the phone display in the morning.

Thanks. In case you are right is there something that I might do for this issue?

Depends on which phone do you have. Most phones do allow you to reduce how aggressivly the phone kills the apps. Check in Settings > battery if you have a setting related to background activity. Another (usually different from each other) should be in: Settings > Apps > WhatsApp > Battery > Don't optimize.

Thanks. In my new smartphone under 'battery' it says 'power saving exclusions' but I think it is the same thing.

I tried to exclude power saving features but it didn't to the local backup automatically. Any other possible reason?

Not sure. WhatsApp not running in the background is the only practical reason for it to not backup automatically. I don't have any other suggestions.

I didn't add that my phone is always switched off. Maybe this is the reason whatsapp doesn't back up automatically in local storage?

Well, then that makes sense. You're not having WhatsApp running during its scheduled cron which takes an automatic backup. There's no way to manually assign a time when WhatsApp takes a backup. So, you either have WhatsApp running at that time (phone be turned on) or do manual backups.


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How to let apps think phone as a tablet?
I have a Phone which has snapdragon 845 chipset on it.
I've never noticed any lagging issues on this device which is far   better than most decent TABs.
But because of mobile, i saw some features on ROBLOX is  missing that is appear in Tablet.
So, can i modify something which may required root access to  bring those features on it?

Possible duplicate of Fooling a tablet into thinking it's a phone so that Amazon Prime streaming will work

Not exactly what im looking for!

Changing the DPI doesn't work?

If you are talking about a specific app you should always provide a link to it on Google PlayStore.


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How to geotag photos uploaded to google photos
I've uploaded some photos to google photos, these photos do not have any location information in their EXIF metadata as my camera didn't have the GPS enabled at the time of capturing images.
Now I want to geotag (add location information) these photos. Since I know the location (GPS coordinates) where these pictures are taken I am looking for an option to geotag them in google photos.
It seems that the google photos app does not have any option to geotag the photos.
Is there any way I can geotag the photos from google photos?

You can geotag the photos from google photos web site.
Follow the below steps to geotag your google photos.

Go to photos.google.com
Select the photos that you want to geotag
Click the options menu and select Edit Location
Type the location and choose the appropriate one from the dropdown
Done. The photos are geotagged now

This does not allow you to geotag a photo using coordinates, you have to tag it to an already established google map location


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Facebook messenger android
Is there anyway to somehow save, store messages if you only have Facebook messenger and not facebook account? I would like to have these conversations, and maybe search in some of them, making statistics, but there is no easy or right now I do not see any way for this.

How you want to save those things in messenger? Does it delete your messages if you log out or removes your messenger ? Please add more words specifically describing your question.

Thanks, I was able to solve it in the end... Facebook can generate your history in JSON format even for mobile accounts.


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Google Calendar notifications not displaying
How do you get events on the Google Calendar app to display notifications on the phone?
Steps I have tried:

Google Calendar app > Swiping left > Settings > (Calendar label) > Default Notifications: Set this to 1 minute before
Tapping on Google Calendar app > calendar item > edit > Notification: Set this to 1 minute before
Going to Phone OS system settings > Sound & Notification > App notifications > Calendar > Setting: Block all to 'off'; Treat as priority: on; Allow peeking: on;

Notes:

My calendar events are created via the web at
https://calendar.google.com
Phone os: 6.0
Phone: Moto E (2nd Gen)
All events are NOT all day. Instead they last for 1 minute.

Try clearing the cache of calendar app on device. If that doesn't help remove and add the Google account to force a fresh sync


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Can't install apps after factory reset
I have a Lenovo Tab 4 10-inch tablet (Lenovo TB-X304F). Recently I had an error on it and had to perform a factory reset, and I'm experiencing problems reinstalling some apps I had installed before.
I have never rooted this tablet. Before the factory reset I did install some non-Google Play apps, but since the factory reset I have only installed apps from the Google Play Store. The tablet and apps are up to date, and the tablet is running Android 8.1.0.
Here is the most recent app problem. I purchased "Planescape: Torment" on November 11, and I installed it on my tablet around that time. However, now that I'm trying to install it again after performing the factory reset, I've had two errors, depending on the method I use to try to install it.
If I try to install it using the Google Play app on my tablet, it says "Your order is processing, your item will be available in a few minutes." (And I did not purchase this recently; I purchased it well over a month ago.) It lists the app as being $9.99 when I view it, as though I hadn't bought it, but when I tap on the button as though I'm going to purchase it, Google Play asks for the standard app permissions and then shows that error. It does exactly the same thing when I try to install it from the library list of all of my apps in the Google Play app.

If I try to install it from the Google Play website, the website tells me it's already installed on my tablet, which is no longer true. It used to be installed; it is not now.

I've cleared the cache and the data from the "Google Play Store" app and the "Google Play services" app. I chatted with Google Customer Support and they had me uninstall updates to the Google Play Store and then update it again, but that made no difference. I have of course turned the tablet off and back on. The Google Play Store doesn't seem to have registered that the app was uninstalled, and I don't know how to trigger that, and I have no idea what to do about the message I'm getting in the Google Play app itself on my tablet.
Does anyone know how I can resolve this and get my old apps reinstalled? Thanks!

https://android.stackexchange.com/questions/20777/cant-install-previously-installed-apps-from-google-play possible duplicate

Thanks, Bo Lawson. I actually had reviewed that post before putting up this post, and the methods there did not resolve the issue. But I was able to resolve it via another approach.

Google Support had me try a number of things that didn't help, but when they had me remove my payment methods, that seemed to do it. I had already removed and added my Google accounts from my device, which I didn't think would help because it clearly wasn't a problem specific to my device. (I had realized I also couldn't install that game or other games I'd bought to my phone, a separate device, so it wasn't device-specific.) The last thing I did was remove my payment methods and cancel a subscription in Google Play, and then I could install my apps to my tablet and phone. I'm not sure how that fixed it, but it did. It seemed to "reset" my devices with Google Play, so to speak. If anyone knows how that resolved the issue, I'd love to hear. I'm glad it worked, but I don't know why it worked.

I saw  the "Your order is processing, your item will be available in a few minutes."  message while trying to fix an order gone bad.....
I was trying to purchase a "second phone line" in the Hushed app.  The subscription/purchase had gone through Play store (where I was charged) but something went wrong on the handover to the app vendor or at the app vendor and the line did not appear.
Each subsequent time I tried to purchase that item, I got the "Your order is processing, your item will be available in a few minutes." message.
I ended up cancelling the subscription that existed on Google Play, then purchasing another subscription.  So yes, I payed for the first month of the subscription twice, hardly an ideal fix.


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Unlink system and ringer volumes
Does anyone know of a way to unlink the system and ringer volumes on Android oreo or pie? My goal is to have a loud ringtone while keeping the system sounds minimal or off altogether. If someone has a different solution for the desired goal that would also be appreciated.

Is the phone rooted? GravityBox xposed module can do that for you.

Thanks for the suggestion. Are you sure there's a way of unlinking the ringer and system? I can only find reference to unlinking ringer and notification. I'm also reluctant to install GravityBox just for one setting.

Definitely sure. https://i.sstatic.net/SbKON.jpg


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Is there any way to mass background restrict app battery usage?
My Pixel 2 has been experiencing severe standby battery drain (last night it went from 95-30 while I slept), and I'm pretty sure it's one of my apps' faults since it doesn't happen when I reboot the phone in Safe Mode. So now I'm trying to restrict most of my apps from using battery in the background, but it's a huge pain going through 50+ app battery usage pages to toggle their "Background Restriction" property. There's a page to disable app battery restrictions in Settings > Battery > Adaptive Battery > Restricted Apps, but there's no way to add apps to that list. Is there a mass app battery management settings page/developer option I'm missing, or maybe an app that provides this functionality?

Look in background and replace them with ones that do not drain your batter.

I don't think there's anything else because all you have to do if you want to restrict background battery usage is to toggle the slider on all 50 apps which barely takes a minute. But if you want help for a longer lasting battery you should search for "Battery" on the google play store and you will find a lot of apps to help you.


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Can I consume a consumable In-App purchase as a user?
As a developer I let my app's users buy in-app purchases (IAPs) and then the app lets Google know that the IAP is consumed so it can be purchased again.
Is that possible for me as an app user? That is, if the app is stuck somehow not consuming the IAP and I want to force it to do so, is there somewhere on my Google account where I can see all of the outstanding IAPs and consume them?


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microSD card performance issue
I have some microSD cards and I noticed a weird behaviour: larger microSDs give lower results!
For example, using them on my Note 8, I get these results:
Code:
 64GB -> R: 70MBs W: 35MBs
128GB -> R: 60MBs W: 30MBs

While if I test them on my PC, I get the same performance:
Code:
 64GB -> R: 80MBs W: 40MBs
128GB -> R: 80MBs W: 40MBs

*same brand, same model, only size differs
**tested with multiple microSD cards
Why?
Honestly I'm shocked about those results! I always knew the opposite: larger storage (microSD in this case) gives better results[1]...
Does this do not happen with microSDs too?

Might be software issues

yes, it could be... but I can't find a logic behind that! Do you have any ideas?


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Android 8.0.0 settings remove suggestion
I am using Nokia 3 with Android 8.0.0. Whenever I open settings option, suggestion option display first, so every time I have to swipe and remove it. Is there any settings, that removes suggestion in settings option.

Please check screenshot and see what am I want. I am asking about in Settings App, not about top of menu which shows most used app.

what will happen if you tap on up arrow near the text named "suggestions". Is the same item repeated again? Otherwise go to that settings, once by tapping on "On body detection". May be it will not show again.

on arrow tap, suggestion collapse highlighted options. I had to swipe to remove  highlighed options to remove suggestion. but after some time it comes again.!

One method described here, please go through : https://forum.xda-developers.com/nook-tablet/help/off-suggestions-settings-nougat-t3603249

Thanks @RahulGopi . I  will try it but need some time to reappear. I just swiped.

Related and unanswered: How to disable dashboard summary in Settings app?


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Changing app permissions
I am using Bluestacks to play a game.But every time i try to play game "Mini Motor Racing" it shows;

I also went to settings >Apps >Mini Motor Racing > but there is no selection of permissions so i can't change permission.I also search for it on google but nothing helped. Plz guide me if u can thanks bye.

These permissions handling are available in Android version 6 and above. I think it's most likely a bluestacks fault (It doesn't seem you are running this Android Version)

Please edit your question and info on the Android device do you use: manufacturer, product name, Android version?


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Can not recognise wifi if the device is far from router
My phone connect when device is close to router but signal is weak.In some routers it connect to wifi and works fine. My mobile data works fine. When i have my mobile data open and activate the hotspot option, other devices recognises the signal but won't connect.
My device it is Samsung S4 and android version is 5.0.1.
Thanks!

Are you asking about other devices connecting to the internet through the Wi-Fi Hotspot on your phone?

@CodeMonkey,Yes,right.Other device won't connect through my Wi-Fi Hotspot.Also my device connect to router but signal it is weak.Thanks!


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File level changes by an Android app
How can I track the file level changes done by an application during execution on an Android device. Specifically I am interested in file level changes done by a malware - create, delete, save a file on the device.
While searching this forum I found one way is - /proc//fd. Is there any other way ? using logcat,Frida or any other way ?

See https://www.nowsecure.com/blog/2016/02/18/filesystem-monitor-tool-for-ios-and-android/

Fanotify ... it's in the link you provided.

Download SD Maid from Play Store and in searcher operations you can specify to search for files that have changed in a time window you specify

Other than the options you mentioned,
There's a seriously long way to do this, the best way in my opinion.
It's very basic and effective, I used this method to find the files or folders that KingRoot modified, created or deleted.
It's one of the oldest methods around,
Compare a base image & after install image.

Backup the device ( in stock condition is better )

system
data
( call it Base Image )

Install and run the application
Backup the device again
( call it Test Image )
Transfer the backups to a PC
Extract the backup's into two separate folders
Use a comparison tool to test for differences between the folders
Identify any Deleted, Modified & Created data

I used WinMerge or something like that, it is designed to help merge folders, however it is enough to do the comparison.
You can also compare the compressed images without extraction by using a Hex editor that has file comparison tools.
I use HxD Hex Editor to compare files on PC.

An even simpler approach could be something like find /path -mmin -10 instead of creating backup. In order to reverse changes, an initial backup would suffice.


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Huawei 3e can't disable apps on Android 8.0
This is never a problem n7
As of yet the phone isn't rooted yet so any advice be helpful for some apps draining the battery

Which apps you need to disable? You can disable only system apps. The apps which are installed from play store(user apps) or other sources can't disable. Either you can uninstall or force stop user apps.

See my solution here: Enable and disable system apps via ADB // You should mention what problem you are having when attempting to disable system apps. Do you not get the option to disable (button greyed out or something)? Also, if your concern is battery drain,  are those apps marked as Optimized for Battery under Battery settings?

Unfortunately the phone is not rooted and I don't plan on rooting it as it's still under warranty with my previews HTC One M9 I could use an app and it would disable and enable apps on the fly was wondering if anything like that would be possible thanks for your reply so far

Feel free to post an answer you have found the solution, but please don't post an answer if you want to reply on the comment. On the other hand, you might need to clarify what do you mean by "disable/enable apps on the fly on HTC One M9 using an app", and the name of the app might give you a hint if it's a stock app by HTC (which you can't probably use it on other devices), or 3rd-party app (which you might be possible to download on other devices).

@Firelord thanks

@AndrewT. It was rooted and I used app freeze from PS. Okidoki ,,


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Bought eBay Galaxy Tab 4, Has SureMDM Nix Installed, Won't let me wipe
So I purchased a Galaxy Tab 4 off eBay, and it has SureMDM Nix installed, and will not allow me to do anything with the device. I do not have access to the home page, google search, airplane mode, nothing to bypass this MDM.
I can't even plug the device into my computer as USB Debug Mode isn't enabled and I can't use the ADB commands either. I'm at a loss.
Is there anyway to get around this?

If you connect it to a hotspot which needs a captive portal, will it open a browser?

Are you able to enter download mode: https://www.hardreset.info/devices/samsung/samsung-t230-galaxy-tab-4-70/download-mode/


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Reasoning behind built in songs made by the android device manufacturer
I noticed my Huawei device comes with a built in song called "Dream It Possible".
Quick search revealed the song was made by the company itself. Didn't  look into it, but pretty sure other companies did and do the same.
What is the reasoning behind this? The song isn't an advertisement to the company. What benefit does it give them?

Just a counter evidence, but at least Nexus 4 & 5 (by Google) don't have built-in songs.

@AndrewT. thanks, so maybe only some "external" vendors, not Google itself. Also a chance Huawei is unique in this, in which case the given answer is all that we'll get. :)

"Dream It Possible" is the official Huawei Consumer Brand Song.
Therefore it can be considered as Huawei advertisement even if the song itself is not directly related to Huawei.

Oh, well had no idea it's their Consumer Brand Song. Thanks.


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How to control Android based tablet from Windows or iMac desktop?
I have a setup in office where on a desk is fixed samsung galaxy tablet on a stand. On the same desk I have Windows PC or iMac. Customer is looking at the tablet. I am the desktop user and I want to control tablet from my desktop to demo a website. Customer looking at tablet should not see any part of my desktop other than the website. Since the stand secures the ipad and hides home button on ipad, I want to be able to access the home button from my desktop to wake up ipad from sleeping.
What is the solution for above?

Team viewer has a remote access program that can be hosted on Android.
This guide has a free solution but I haven't tried it and I don't know if it'll unlock the device (it does specifically say it can do the home button).


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How do I set a custom SMS tone for a single contact in Android Messages running on Samsung Galaxy Note 8?
How do I set a custom SMS tone for a single contact? in the answer at https://android.stackexchange.com/a/16653/13886 it is claimed that this option exists in the dot-dot-dot menu, but it does not for my phone.

Was the feature there at some point, but then they took it out?
The phone is a Samsung Galaxy Note 8 running stock Android 8.0.0.
The Details button points to some central configuration that lacks adding a per-contact ring tone.
Is a specific app actually needed for this? Meaning, was this simply never built into Android? Or, is it there, but hidden by Samsung? Or  hopefully this is just user error, and I'm not finding the setting?

If you can't find it and everything leads to a dead end then yes it was probably removed. 3rd party app with the ability for custom sounds would be an alternative.


text:
How to safely root the Samsung Galaxy Tab A 2017 (SM-T380)?
I am wondering what would be a safe way to root my Samsung Galaxy Tab A 2017 (SM-T380)?
I understand there is CF-AutoRoot and such but I have no experience in rooting any device with that method and I'm extremely scared that if I attempt to root my tablet with CF-AutoRoot and such that my device will get bricked.
Details about the tablet below.
• Android Version: 7.1.1
• Security Patch Level: January 1, 2018
• Build Number: NMF26X.T380DXU1ARB3
• "OEM Unlock" option available ✔
I also have another question. The tablet has a pending update to Android Oreo, if I were to update the tablet and the tablet was rooted at the time I updated it would it affect my root?

I removed my RMM prenormal with miracle box no box and after finding the twrp tar on xda used it to install a custom zip file i made with superr kitchen and a rom from samfirm .
There are no roms a


text:
Need to recover data from SD card as used Android Internal storage from PC
I had an SD card as internal storage in my Android, reset my phone to factory. SD card would no work in that device. I am no longer able to use that device because the screen is smashed anyhow. How can I recover the data from the SD card? I tried to reformat on my laptop but the disk is write protected.

Using SD card as internal storage is risky. Because, if anything happens to SD card or if factory reset device the data on sd card is not further usable. I had experienced this: I have moved some app data to sd card previously, when SD card is removed, those apps are grayed out and cannot use them.

AFAIK using sd card as internal storage will do some encryption on sd card. so that you cannot use that sd card on another device without erasing data. Also, the same may happen if you connect with a pc.

Is there anything I can do to recover it from my PC, without access to the phone is was encrypted on? Nor the key to the encryption?

This is very device dependent.
The first option you should try when recovering your data from the external SD Card is to REMOVE the card, Place it into an adapter & put it into a computer.
Try to access the data that way,
From my personal experience a research on Android, I can not find any reference to the SD Card being encrypted as the comments suggest in your question.
Samsung device's do have SD Card encryption by default, However this is not say an " Android " thing to be expected, usually you need to manually encrypt your SD Card.
The SD Card is however Formatted in Fat32 or just Fat, and it usually has a Linux partition for speeding up transfers.
You need to place the card into a computer and use a data recovery software... Because I'm on Windows 10, I suggest Recuva by Piriform because it has a decent home version.
Another option to try if you do have encrypted data is to do a recovery anyway.. Often not all data is encrypted, only necessary data to read the drive is encrypted.


text:
Seemingly dead Sony Z5 Compact gets detected as QHSUSB Bulk
My 2 year old Z5c (E5823, non rooted, official Sony Nougat update) died while updating some app, and doesn’t show any signs of life since then. Connecting the charger doesn’t turn on LED indicator, but it does consume about 0.90A. I have tried all different reset procedures, and only the first time I tried the 2-minute reset did it vibrate once or twice. Since then it doesn’t ever vibrate either.
If I don’t press the power button before connecting to Linux, then it gets detected as QHSUSB__BULK (Manufacturer: Qualcomm CDMA Technologies MSM) only. However, if I reconnect it , then it gives a USB error related to "USB power limit exceeded” :
device descriptor read/64, error -110
I need to then either disconnect the batter or press the off button next to Sim. My first priority is to recover its data (the phone was encrypted however). And if possible, fix it. I couldn't find its schematics to confirm if it's a hardware issue or bootloader (hard bricked), and would greatly appreciate any tips or advice to further diagnose or fix it.


text:
How to find why call is not connecting
My mobile phone is not able to make calls. All calls are ending after 4-5 seconds. All the settings seem to be fine. Is there any log file where sim provider logs some reason? Or any other way to find the reason for the issue?

Which Android phone and Android version are you using? Which network provider is it? Did you try using an another SIM and using your SIM in an another phone?

My first thought would be along Firelord's lines as well, assuming you have rebooted, and performed rudimentary troubleshooting. The next step is to find a friend or go to the carrier store and try a SIM swap, put your SIM in a known working phone and a known working SIM in yours. If the problem stays with the SIM, get a new one, If the problems continue, it is time to get the carrier involved to check your account configuration. If the problem stays with the phone perform a Network Settings Reset (if your device is new enough), otherwise perform a factory reset.


text:
does a newer version of andriod has better RAM management?
i have a rather old device with only 1 GB of RAM and currently runs a very barebone android 4.4.4 which lacks a lot of features. I am thinking of installing a newer version of android in it... is it a good idea? or i would better stick to kitkat? im afraid installing a newer version of android would just slow my device down even more (it is already quite slow in its current state). im sorry for my bad english..
device: Polytron Zap 5 4G 450
processor: qualcomm snapdragon 410, quad core 1.2GHz
graphics: adreno 306
RAM : 1 GB

If a newer version is available for your device, the answer is maybe. Some newer versions have better RAM management, but this all depends on how the OEM implemented it. I would install the newest version you can and perform a factory reset, then only install essential applications. When significantly changing Android versions a factory reset is recommended, meaning 4.4 to 5.0 should perform a factory reset, 4.4.3 to 4.4.4 it is not necessary. This is not a common device that I am aware of, so I can't really give you an answer besides this comment.

All that said, 1GB or RAM is 1GB of RAM, that is barely usable by today's standards and no change to the OS is going to significantly impact it's usage. 2GB is considered the bare minimum, with 3+GB recommended. I haven't recommended a device, even a "budget" one, with less 4GB for well over a year.

According to some tests I read memory consumption and app speed can improve upgrading from Android 4.4 to a newer Android version that uses ART (used by Android 5 and 6). Therefore updating may improve your situation, however I don't think that you will realize a big difference.

It may be beneficial to upgrade the device, however you might find custom ROMs that have the features you want..  I've found that 1GB Ram is good enough for a Phone.. If you are using it as a gaming machine, then obviously not... It's all about fine tuning your performance, Sometimes a few build.prop tweaks can drastically increase performance ( sometimes triple ) ... Using well thought out memory designation can also significantly increase performance... You may be able to lock your CPU profile on Performance mode and harness the full power.. Or do some over clocking ..


text:
location via WiFi, cell tower not working anymore
I have a Nokia 8 Sirocco with Android 9 (kernel version 4.4.153-perf+ #1). Since a few weeks ago I noticed that the phone seems to be unable to get its non-GPS based location - e.g. via WiFi locations or cell tower triangulation.
The symptoms are:

Google Location history is less accurate.
My shared location only updates for the other persons whenever an app uses GPs (and there is a GPS signal).
I keep seeing an "Updating your shared location" notification.
Apps that rely on location services take longer to boot up or be responsive.
Apps that rely on location services do not work at all without an available GPS signal.
Location based Smart unlock is not working.
Location based reminders are not working.

I have checked the following settings under Security & Location » Privacy » Location:

Under Google Location Accuracy the Improve Location Accuracy is On.
Under App-level permissions all relevant apps have permission to access the device's location.
Under Scanning both Wi-Fi scanning and Bluetooth scanning are On.

Is there anything more I could do to get this working properly again?

Wild shot- try disabling location accuracy, reboot, enable and check

@beeshyams while this seems to have worked initially for a while - the behaviour is now back again unfortunately. This makes me conclude that either a) there is a bug within Android 9 or b) there is a bug that occurs with Android 9 only on the Nokia 8 Sirocco or c) something is wrong with the phone itself.


text:
Use 4G while being connected to a WiFi direct printer
Is it possible to use 4G for internet while being connected to a wireless printer with WiFi direct?
If not, are there any alternatives to use both, the printer as well as the internet, simultaneously without requiring another WiFi access point?
(The printer in question is the Epson L3150 Wireless Printer)

Does your device has the option "Cellular data always active" (Settings -> Developer Options)? Note that the developer options have to be enabled first.

If Epson or the device manufacturer has a printer plugin in Google Play store for wifi then you don't have to use wifi direct.

This is an ongoing issue that has been described as an optional implementation of the wifi direct. Or rather a lack of implemented options. My self a team testing an app for a developer, found that some phones have an option or feature for load balancing over wifi and data as a feature. Those that have this balancing, print and access internet without issue. Those without have no data over cellular while connected to wifi.

I was looking to the similar solution with my 360 camera and I found it. Even though my problem seems to be more complicated than yours. I needed some app to get data from internet while my phone wifi was being used for wireless connection with the camera. The app just always wanted to use wifi to get data and ignored all settings and even restrictions through mobiwal to use mobile connection only.
Below is where I asked about it and described a solution before I got any answers
Need wifi to be connected to a camera(no internet) and one app using 4G for internet
In your case, why don't you want to try to do it as simple as that:
1)create a hotspot on your phone where your 4G connection
2) connect your printer to the hotspot?
I did almost the same but in my case I used a second phone just as a hotspot. The reason I had to do it that way is I cannot connect to anything from the camera directly so I had to go through Wireless LAN client mode as a feature of the camera. In your case your printer should have some kind of screen that can help to connect to your hotspot.

how did you enable "wireless LAN client mode" for camera? (BTW the link was removed)


text:
Is it possible to have a specific app make noise and vibrate even when the phone is on silent?
When I go to bed for the night I usually put my phone on silent without vibration, so that I don't get disturbed by constant notifications from meaningless things overnight.  However, I have an app that is used to alert me when I'm on-call at work, and I'd like that app to always have a notification sound and vibrate, even when the phone is on silent, so that it wakes me up if it goes off at night.
Is this possible with Android? I'm using a Galaxy S9 with Android 8.

How does that app alerts you? If it posts a notification than you can setup an automation app like MacroDroid to detect a notification from that app, remove DND or your silent preference, make a vibration along with a custom tone of yours and than restore your silent preference.

@Firelord it posts a notification. I'll look at MacroDroid. Is it like Trigger or IFTTT?

I am aware of neither. But it is powerful. Another and more powerful alternative is Tasker. Its trial version can be found on its website.

@Firelord Trigger is a lot like Tasker. Thanks. This might be the way to go.

Let us know if it works out for you. :)

I know this is late... but you could consider using "Do Not Disturb" (search in settings) instead of silencing your phone. Then you could go into the notification settings for the app and allow it as an exception to Do Not Disturb.


text:
Oem unlocking not allowed
I am getting an error while trying to unlock the oem.
The error reads as Oem unlocking is not allowed.
I have yu yuphoria 5010a. And in oem device-info fetting as device tampered - false.
Please help asap.
Thanks,
Dev

You need to enable the option "OEM Unlocking" in the developer options. Provided YU allows you to unlock the bootloader, the switch will be enough for you to go back to fastboot mode and issue the OEM unlock command.

Just to clarify.
You need to enable OEM Unlocking in Development Options

Steps,

Open Settings
Open About ( or more, then About )
Locate Build Number
Tap Build Number 7 times
You should see, You are now a developer.

After that, you will have a new option in settings, called Developer Options.

Open Developer Options and look for OEM Unlocking.


text:
Google music player queue
I have read numerous posts about adding songs to the queue. My issue is I select a song and start it playing, I then select the next song and click the 3 dots next to the title and select "add to queue". I do this for several songs. I then click on the title bar and select the icon to view the queue and instead of showing the songs I added to the queue the queue now lists every song in my library not just the songs I added. What am I doing wrong?

If you want to play selectef songs back to back it is recommended to create a playlist of the songs you tend to listen more often. It is quite easy way and reliable as well.
Add to queue is nothing but to add the songs it is showing right in the list.
If you want to play few songs at once back to back please choose 'play next' option, as your concern is by choosing 'play next' option let's say for 5 songs, your 5 songs will listed just below your currently played songs and after 5 songs you will see list of all the songs from library.


text:
Where can I find the default /system/lib for Lollipop
I have a rooted Alcatel 5017 A and I wanna check the libraries on the system (I think I got hacked) can anyone show me the default content of system/lib for this phone? Thank you all!
Also, I would like to decompile some system process in order to check if their code had been changed, if anyone knows how to reverse engineer the com.google... processes I would love that

Flashing stock ROM or Factory Firmware looks more feasible option than looking for default libraries of a specific device and reverse engineering its binaries.

can you give a quick hint on what it means to flash stock rom ? The internet only have tutorials but no explanation

See this and this. Flashing ROM means installing a fresh copy of Android OS.


text:
Recover Whatsapp Keyfile
I have a backup of my whatsapp database, however i accidently wiped the keyfile from the system partition when i tried to recover my phone that did not boot any more.
Does anyone know if there is any backup of this file somewhere on the internal storage of even in the cloud at whatsapp, or if it is somehow possible to decrypt the database without the file?
Thank you!

It is not possible to decrypt the database without the keyfile, and WhatsApp make a point of not having your messages in the clear (they are encrypted end to end)
So unfortunately you have no chance of getting your data back without that keyfile.


text:
Hotspot Internet Problem
I am giving hotspot to laptop via android mobile but in laptop it is showing there is no any internet connection when I connect via laptop wifi. In my android phone I am using internet with 4g speed.

Did you follow these steps? Have you set a password for your hotspot?
Please click on this link Share a mobile connection by tethering or hotspot on Android

Tether by Wi-Fi hotspot You can share your phone’s mobile data with up
  to 10 other devices via a Wi-Fi hotspot.
Step 1: Turn on your phone's hotspot Open your phone's Settings app.
  Tap Network & Internet and then Hotspot & tethering. Tap Wi-Fi
  hotspot. Turn on Wi-Fi hotspot. To see or change a hotspot setting,
  such as the name or password, tap it. If needed, first tap Set up
  Wi-Fi hotspot. Tip: If you don't want your hotspot to require a
  password, pick None under 'Security'.
Step 2: Connect another device to your phone's hotspot On the other
  device, open that device's list of Wi-Fi options. Pick your phone's
  hotspot name. Enter your phone's hotspot password. Click Connect.

Issue not solved.

@PAWANJAIN Check that your telephone operator allows the possibility of tethering or hotspot. Sometimes this possibility is not available or is not included in the telephone tariff.


text:
Remove Google Play Services from no-root Android 8.1 phone
How does user remove the stubborn 'Google Play Services' from the Android phone? Android 8.1 'Google Play Services' does not allow remove updates option. Why does 'Google Play Services' behave similarly like the Microsoft Edge web browser that is stubborn and can't be removed.
User buy the Android phone should not be denied from uninstall stock apps such as the notorious 'Google Play Services' that use data usage without user permission!
Please do not provide answers such as root the android phone because this question is about no-root phone (meaning the phone is not rooted). Also,  PoGO has new TOS that does not care about user privacy!

See https://android.stackexchange.com/a/204114/96277


text:
"Please sign in using one of the owner's previous accounts for this device."
After resetting my Huawei Honor 8 I'm asked to log into a previously added google account.
I clicked on "I forgot my email" and added my phone number. After this google showed me all the email accounts attached to this phone.
I then tried to log into the account with all of those accounts but I always get the same message: "Please sign in using one of the owner's previous accounts for this device."
This phone has always been mine so the account can't be someone elses.

I am still unable to  log into my phone. I have tried every single account I own to log in. At this point it seems more that the problem is on googles side. The answer below also didn't work.

If for sure you have forgotten your primary mail, for as far as I know, there's no guaranteed way of knowing the mail, you should rather prefer bypassing the lock instead of trying to get to remember the mail, here:
At the very beginning from the Welcome panel choose appropriate language.
Afterwards connect your device to one of the available wifi networks.From the Verifying your account panel active the keyboard to input the email.
In the next step press and hold the icon from the left-down corner of keyboard.
 As soon as Huawei Swype menu appears on the screen choose the Help.
After that tap Version and the select Swype.
From the text in front of you click the first link and choose Browser.
You can now use the Internet browser. Type in the following phrase in the searcher: download.hardreset.info
Next choose Huawei folder and download Huawei Bypass Google file.
 Open the menu of the browser by tapping the Middle key.
Then select Download options.
In the next step open the Bypass application.
When the Install blocked screen appears on the screen choose Unblock.
Afterwards tap Install and accept necessary conditions.
Tap Open icon and Cancel for the Delete installation package.
Excellent! You are right now in the Main screen of your phone.From the main menu choose Settings .
In the next step tap Backup & Reset and select Factory data reset.
Then choose Reset phone, and confirm the whole operation tapping Reset phone again.
Good job! Wait to accomplish the process! This operation removes your Factory Restet Protection.
If incase you switched to another input method. Hard reset the phone again as below:
First of all, hold down the Power key in order to turn off the device.
Next, press and hold the Volume Up + Power button at the same time for a few seconds.
Let go of held keys as soon as the Huawei logo appears on the screen.Then select by using Volume buttons option "wipe data/factory reset", and confirm that with Power button.
Once more choose "wipe data/factory reset"  from the menu, and accept it with Power key.
When the Recovery Menu pops up accept option "reboot system now" by using Power button.
Congratulations! You have just performed the hard reset operation
Boot it up and try again the previous procedure to bypass the verification

Do you know if there's any way to find that mail?

Finding the mail is not the only way to bypass that verification since your primary concern is getting the phone to a useable state. You can do this to get it working again since there's no way of knowing that mail that may be straight forward. Check the edited answer

What way would you recommend to bypass it?

I have just updated the answer

Hard Reset it again

Yeah I just did that but now when I hold the icon the keyboard just disappears. It doesn't open huawei swype.


text:
Can I get rid of fake messages from the preview?
On a Galaxy tablet, underneath "Messages 3 x 2", or "Email 3 x 2", some fake messages are appearing.

John Doe
  Tomorrow's event
Marissa Haro
  [illegible]
Raye
  Re: Re: How's it going in Seoul?
  Sweetheart. I miss you so much. Having a ...
Zuno Du
  Here is our plan :)

and

Peter Leiagh
  OMG! I didn't know it! Why didn't you tell me?
Sam Martin
  I will never gonna tell you :-p
John Smith
  You're BACK!!!
Marissa Haro
  Hello. Here is the [illegible]
Eva green
  This is the last remind message

Based on these messages featuring John Smith, John Doe (I assume this was intentional, though it could be intended as someone with a surname of Doe choosing an English name of "John"), and Eva Green, I suspect that they were intentionally fake names.
Clicking on the preview item opened it up, and it was empty.
I wiped emails from the GMail application, and wiped the tablet clean, prior to seeing these fake messages.
The tablet isn't intended to send or receive text messages, though it received a few in the past prior to me wiping it.
How can I stop these fake messages appearing?

Alternative question title: "How can I stop Raye from saying that she misses me in Seoul?"

Have you noticed the number or the email address from which those messages came?

If possible, just disable the app.


text:
Need to set up a phone with limited permissions to help with a learning disorder
I need to set up a phone that will allow the user access to installed apps but will not allow them to install new apps.  In addition I need to allow access to only a whitelist of websites.  These constraints need to be unbreakable short of a factory wipe.  My thought regarding privacy was to have a superuser account that the user and administrator each have half of the password, so the administrator can't get on the phone without the permission of the user.
I'm kind of desperate here.  I asked this question twice on r/androidroot and both times people told me to just install apps that "reward good behavior" etc.  We're way past that point.  The user really needs email, text, maps, and a few work related apps (plus definitely some apps like Habitica to reward good habits!).
I haven't rooted a phone before but am fairly technically proficient.  If Tasker is any part of the solution I'm pretty handy with that, otherwise I will do or learn anything necessary to make this happen.  I have a google pixel to work with but if absolutely necessary will get a different phone.
Thank you very much for any help you're able to provide!
p.s. the disorder is a pretty strong Executive Function disorder - despite 18 years of therapy with 6 different people the user is basically unable to build good habits or demonstrate much willpower.  It's been pretty devastating for them.

that's pretty sad condition you have there, I hope what I am going to provide will be much useful for you.

In order to prevent the user from installing new apps from Play Store, you may try any of this method from this article:

https://useboomerang.com/2018/07/25/3-ways-block-kids-installing-apps-android-phone/

Regarding with allowing only specific websites to access, you can try from any of the followings:

https://www.lifewire.com/how-to-block-websites-android-4179021
https://techwiser.com/block-websites-on-android/

I am not really sure if we are able to set this up, however, try this:

https://superuser.com/questions/1156080/how-to-stop-users-from-viewing-saved-passwords-in-chrome

Maybe the link below can be a good addition:
- https://www.howtogeek.com/223530/how-to-lock-down-your-android-tablet-or-smartphone-for-kids/

Thank you for these - The first article talks about Google Family Link and if it's not easy to defeat that does everything I'm looking for!  It involves me pretending to be ten years old which would've been humiliating a year ago, but now I just care about results.  It's kind of weird, but I don't want to do too much reading about if it can be defeated because I don't want to know how to do it :-)


text:
How to erase Kyocera recovery partition
I'd like someone tell me how to erase the recovery partition in Kyocera phones. The thing is that I need to power it in fastboot mode, and that is the only way, it's only possible if the recovery partition is empty. Thanks

I'm not familiar with Kyocera, but doesn't the recovery have an option to reboot to bootloader/fastboot? You won't even be able to delete recovery if you cannot go into the fastboot  mode or else if your device is not rooted.

Had same problems with an old MTK... I think i ended up using the boot.img to overwrite the recovery.img...

Singhnsk thanks for your attention. No, the recovery menú have only 3 options and the fastboot mode reboot is not present.

Zillinium that sound good, and it's that I want to do. Now, how do you can do it without the sideload option or the fastboot mode? This Kyocera's processor is not mtk, it's qualcomm.


text:
How to enter second phone for contact?
Just got Oreo and I can only enter 1 phone number in contacts,
how can I get it to record mobile and office?

To help other visitors, could you specify what Contacts app you're using? And if it's the default app, what phone it's on?

The Contacts app usually contains at least two types of contacts: Contacts stored locally on the phone and those stored on your SIM card.
Local contacts have a large variety of fields and attributes you can set. However if you select a contact from your SIM card you are limited to one phone number and one name per contact entry. This is limited by the SIM card.
Therefore you should make sure you are not creating/editing contacts stored on your SIM card.


text:
Can't use Gmail and Google play store
In my Samsung galaxy on nxt, android version 8.1.0. in my phn I can't use Gmail as it is showing msg that Google play is updating. And same time can't sign in Google play store. What to do?

You can check the internet connectivity. Other thing is to reboot the phone. Ideally this should help and if it doesn't you need to go to customer care of Samsung.


text:
What steps are taken by the OS when an app is uninstalled?
I recently reported bug for two apps that I use. The support guys replied that I need to delete cache and unblock notifications, set battery optimization and putting that app to sleep to turned off. These are understandable steps to fix an issue.
What puzzled me that both the app support guys additionally suggested that I should uninstall the app and reinstall. Which I will not do because that will mean I have to manually download all the downloaded content again (more then 50+). Seems like a nuclear option.
I am not an Android developer, a .Net full stack developer. Their response made me curious and now I want to know what happens when an app is uninstalled. What made the support guys of these renowned apps to tell me to go nuclear and uninstall the app and then reinstall again?
Additionally which these steps can be performed without uninstalling the app to verify if issue is not with code of the app but it is some other factor?
This question is not regarding those two apps that has bugs but rather to get better understanding of the life-cycle of an Android app.
As of my understanding, in my .Net app most bugs usually are caused by either code or cache issue (tbh cache issue is also due to code not properly handling caches).
As my understanding in Android is limited, I tried to research what are the events and tasks that Android OS performs, that might cause an app's bug to get fixed (Not an effort to fix issue for those apps, rather to understand what Android OS does) however I didn't find much resource on the internet.

By deleting the app data all problems that may be caused by data migration issues are gone. Because of the high update frequency of apps migrating the app-specific user data is a big topic and a potential source of problems. Also it is an "easy solution" - from the app developers perspective of course.

Uninstalling an app will remove entry from /data/system/packages.xml, and delete package from:

/data/app/ (apk file)
/data/data/ (user data and cache)
/data/dalvik-cache/arm/ (translated java bytecode to executable dalvik bytecode)

Clear cache can performed from the android settings. Custom recovery twrp has option for wipe the dalvik cache.

In addition to /data/app/ and /data/data/, directories from /sdcard/Android/data, /data/misc/profiles/ and /data/user_de/0/ are also deleted. Other files which may be affected include /data/system/packages.list, /data/system/packages.xml, /data/system/users/0/runtime-permissions.xml, /data/system/appops.xml, /data/system/users/0/package-restrictions.xml, /data/system/notification_policy.xml and /data/system_ce/0/shortcut_service/shortcuts.xml. /data/dalvik-cache/ is only used for system apps, not for user apps. User apps' cache is located in /data/app/<PKG>/oat/.

thx i was wondering where dalvik-cache was gone after kitkat. seems for system apps are just symlinks, they have moved too

I think links are for framework (usually .jar) files. Apps (.apk files) don't contain executable (.odex or .oat) files, so those are created in /data/dalvik-cache/ for system apps.

Application updates do not recognise OTA Updates..
I have had several problems lately due to the fact that still use Android 5.0 and updating an application built for Android 8.0 or Android 7.0 will not work on my device..
The application will install the update, however the Data is still configured for Android 5.0 so the application can not read its own data...
Uninstalling the application will erase the Data and allow a fresh installation to initialize the data for a newer configuration.
From my point of view as a developer, i believe that Uninstalling & Reinstalling can be an over kill of a method.
As a developer, i see two options...
Delete All Data to the Application to reinitialize the configuration when you reopen the app.

Open Settings
Open Apps
Find and Open the Apps
Select Clear Data & Clear Cache

...
It may also be a file on the primary SD Card, this is the last stuff to be deleted ( .Android folder )

Open your primary SD Card
Open the hidden folder ( .android )
Open OBB  folder
Locate large data that is linked to the application package name...
Move the OBB Files to a backup folder
Open the .android folder again
Open the other folders and locate the Apps data
Leave the Apps data if it is too large to re download, sometimes you must re-download the data because the app has had the data reset it won't think the data exists until you complete a new data download.

Uninstalling has already been explained, i just wanted to add my suggestions on wiping data for the app, rather than uninstalling.

This makes a lot sense now. That those apps might be having the data configured for older version of Android. I reported the first bug after a week of my phone getting upgraded from Android 8 to Android 9. And the second one might be same too even though I found the issue one month later. I got into that bug reproduction scenario only when I actually started using the feature. The issue might have been there since my phone's upgrade.

If the app stores most of its data online (in the cloud) through an account, then uninstall/reinstall isn't actually that nuclear. All you'd have to do upon reinstallation is sign in and the app should pull all your content back from the cloud. That's the ideal case at least, but of course you never know.
To answer the original question though, uninstall/reinstall is supposed to give you a clean slate and rid you of any accumulated crud and other subtle anomalities in user data. May or may not make sense in theory but practice has shown it helps get rid of problems surprisingly often. This is not restricted to just Android, a similar approach often helps on many other platforms, mobile, desktop, and elsewhere.


text:
What data does the Google drive app contain in an android smartphone?
I want to delete some of my android apps data due to storage problems. I see that my Google drive app does contain a lot of data and cache. I have already deleted the cache but I am not sure if I should delete the data associated with this app because I don't want to lose any of files both in my android phone or in Google drive. What does does this app exactly contain and what I may lose on clearing this app's data?

You do know of the Google Drive help page along with How to delete and restore in Google Drive

What does does this app exactly contain

The app's files and settings, plus the files that you have made available for offline use.

and what I may lose on clearing this app's data?

Nothing. Only the data that were on the phone. Files that were uploaded to Google Drive wont be affected. They can only be deleted if you delete them from within the app. The app will return to the state it was in the first time you use it on the phone.


text:
I have Huawei P20 pro, and cannot receive WhatsApp messages unless I open the App
I have a Huawei P20 pro, and cannot receive WhatsApp messages unless I open the App.
A few points to note. There is intrusive data collection by many Apps and also usage of completely unnecessary network data - in my opinion.
So I restricted the default Network access. Huawei P20 Pro has (I assume other Huawei models + Andriod in general) a "Data saver" option. This restricts data access. However as a subsetting of this you can make an exception for the Apps you want. Using this path;
Settings => Wireless & Networks => Data usage => Data saver (On|Off) => On=>
Here choose for "Installed Apps" and "System Apps"
WhatsApp (and few others) selected for exemption, but still no messages unless I open the App. Any ideas?

Perhaps you need to enable Google Play Services background data too


text:
adb shell push image to recent or downloads folders not on sdcard
I want to push images to one of this folders:

with shell command. But file only appears on sdcard folder
My last tries was:
adb push C:\Users\User\Pictures\girl.jpg /data/media/0/Pictures/
adb push C:\Users\User\Pictures\girl.jpg /sdcard/Pictures
adb push C:\Users\User\Pictures\girl.jpg /storage/emulated/0/Pictures

Recent is not a folder, just a list of files recently opened. Dawnloads is /sdcard/Download or /storage/emulated/0/Download.


text:
I can't write to my sd card
Some unknown file types appeared with weird name but significant size(one is 1.8gb), also can't delete it. After i reboot my phone, they disappear along with some other files like my photos and videos but i am able to write to my sd card for some days and again the same problem repeats.

this memory card is broken/corrupted that's why. You may try formatting it using a computer but I don't think it will work well long

How large and how old is the SD-card? Have you ever tested the SD-card by completely filling it up with data? There a forged SD-cards that claim to be much larger that they actually filling it completely such cards will fail.


text:
How can I factory-restore a Samsung J5 (2015) SM-500FN?
What I have:
I have a Samsung J5 (2015) SM-500FN which ran out of storage and basically hung itself up. There is no data I want to recover, but I want to install either a stock ROM or (preferably) something else like Lineage - I just want to get a usable phone again.
My problem:

I have tried to download many stock ROMs from reputable sources like SamMobile (for this specific phone, but trying different release dates and country codes) but every single one of those ZIPs is corrupt, even when downloading from a different computer.
Flashing with ODIN anyway gives a FAIL result and a device that cannot boot, not even into recovery: It gives a green screen with the text: An error has occurred while updating the device software. Use the Emergency recovery function in the Smart Switch PC software.
Ironically, the Smart Switch software just says this device is not supported. The older Kies3 software lets me enter the exact model# followed by the serial# - but then it says this device is not supported. So neither Samsung software is usable, but I can still use ODIN.
Even with the phone in this broken state, I can install TWRP again. So it is not completely bricked. I boot into TWRP and copy a LineageOS ZIP file to /sdcard, but when I try to install that, the TRWP console says: E3004: This package is for device j5nlte,j5nltexx; this device is . Note it doesn't appear to recognize that this device is indeed the model j5nlte!
Android.SE says that "E3004" means my TWRP is too old, but I use twrp-3.1.1-1-j5nlte which is currently the newest version for this phone.
I would also like to try a factory reset, but that requires the stock recovery which won't boot (see step 2 above).

My question:  How do I get out of this catch-22?
It seems that if I could just get around that E3004 then I would be fine. But I have found no ways to trick the installer into ignoring that error.

A friendly forum user pointed me to this updated version of TWRP which I could install using the already installed TWRP.
After upgrading the TWRP itself, I was then able to install the ROM I wanted. Problem solved!


text:
how can i gain access to texts if i dont have the phone in hand
So let's just say I dont trust my husband, and I want to access his calls and texts on my computer. I dont have his phone right this second, but I am the account holder for both phones and they are linked by gmail and yahoo accounts. Is there a way I can remotely gain access to these?
I have tried calling my cell carrier, I have tried different applications, not sure what else to do.

What Android version & Device is he on ?
It is extremely important to know if the target device has a Firmware update coming soon and also it is important to know what Android Version the device is running on, both these pieces of information can be obtained by getting the target to load a website and provide data to the website for loading.
I made this page as an example of a browser user agent string reader Check Device & Browser example php
After you know the Android version is not going to change ( No Updates ) and you know what the Android Version is.. Then you can look into remotely monitoring that version of Android.
Let me explain some more,
On Android 4.4 or below,
You can track the text messages, calls, call history, message history, application launch history etc..
You can use several application's below Android 5.0 to monitor android almost invisibly.
My favourite would be the simple ones like SMS Forwarder and mainly any Parental Control apps, have a look around at the options, i haven't used Android 4.4 for age's so i can't even remember any others.
Android 5.0+
On Android 5.0+ Things get a lot, A Lot, Harder !
In Android 5.0 you need to select the SMS Handling application, this only allows 1 single application to Read the SMS Messages being sent !
However you can still receive SMS Message's easily using a Broadcast Receiver ( For Phone Number Verification in Applications )
So, on Android 5.0+ it will be very difficult without modifying the system of the phone to allow a monitor application.
Logs and LogCat Reading,
You can still read the sent message's using a Log reading method, It waits for the SMS to go into OutBox or Sent and then uses Read Messages permissions to list all message's in the default SMS App, once it has listed all the message's, it then checks by time to see was last sent.
However Android 6.0+ Implemented
( On Demand Permission Acceptance )
With Android 6.0+ you need to accept the permission to receive calls, sms sent & sms received information at each read... Their goes Invisibility...
Due to the massive number of permission changes to Android, it is probably going to be a fight to get an app working with all permissions permanently accepted so as to stay hidden.
You are the owner of both accounts
I have seen accounts being used to bypass the Messages & Calls & Contacts permissions by using Google Backup...
The Application initiates a Google Backup of everything on your device and then you can access that information by restoring it onto another device that you own.
Conclusion

Permission acceptance can stop monitoring software from working.
Default SMS Application Selection can stop SMS Sent monitoring.
Android 6.0 Stops Monitoring by using Permissions & SMS Application Selection.
Android 5.0 Stops Monitoring by using SMS Application Selection.
Android 4.4 or Below will not stop Monitoring at all.
OTA Updates can update your Android Version and bring about new problems as I've mentioned.
Both Devices Accounts are linked, so data can be accessible by Google Backup & Restore.
Some stuff can be monitored invisibly, however you need to accept the permissions permanently so the user never See's it.

Other methods than Malware or Spyware
A method sometimes used by Law Enforcement Agencies is to Clone the SIM Card, you can buy many SIM Cloning device's online and blank sim cards to clone into... However many ISP or MSP's are monitoring for Cloned sim cards and only allow 1 device to receive the message or call..
Sometimes it is at random who gets the text or call, but only 1 of them gets it.
SS7
SS7 is a security protocol that we all accept when using an Android device, as part of that we allow all our information to be accessible through the security protocol SS7... Even your Camera is accessible while your device is switched Off...
Many hackers have hacked SS7,
You can even use whole website bots that do the hacks Automatically by purchasing an account with them, software can also be purchased that hacks SS7 Automatically as well.
Root Access & Spyware
If the target has Root Access, thing's get a lot easier... Root Access Spyware can literally be invisible... You could manipulate the stock messaging application and also implant spyware into the system, i will not cover that here.
My Advice

Ask him, tell him that you are unsure about his commitment to the relationship and you would just like to have some closure by looking through his phone ?

It is easy to delete a message and call history i know, but trust is a very powerful thing.


text:
Split screen with Android Go pie
If I understand it correctly, the only thing that makes an Android ROM a "Go" version is the "ro.config.low_ram=true" entry, which brings several optimizations for low end devices and improves the performance by disabling some of the android features. One of them is the ability to display two apps simultaneously on the screen, using the split screen function.
So my question is - can only the split screen (or multi-window) function be enabled on an Android pie Go ROM, without disabling all other "Go" optimizations?
I'm using Resurrection Remix pie ROM on a Motorola Moto E 2015 phone.

According to me, it can't be done, because running two apps side-by-side requires a large amount of memory (RAM).

Well, I used to run two apps in split screen with RR nougat just fine on the same phone, occasionally. Maybe the pie version of android needs more ram, and the experience could be choppy, but I guess it could be done with pie also, by disabling the low ram entry. But then all other low ram optimizations would be lost, which probably help the phone run smoother all the time. On the other hand, split screen can be toggled so it should only affect the performance, when it is enabled.


text:
Contact names not showing on dialer, but do show in Recents
Have a Samsung J3 2017 (SM327).  About a week ago, noticed that incoming & outgoing calls going to/from someone in my Contacts only shows the number, not the Contact name, so I often have no idea who's calling me.  But when I hang up and look in the Recent call log, the Contact name shows up correctly there.   I have tried every permission, every setting possible.  Spent an hour with an ATT tech - nothing.  Did a factory restore - nothing.  Took it to a Samsumg authorized serviced center and had it completely reflashed.   Fixed the prob for 2 days, then reappeared.   Any info?

Found out source of problem.  It was ATT Call Protect app.  Disabled app and issue solved.

Ideas:

get a new phone :-P
another app is handling the calls and lacks permission, could be yours or a virus. maybe try uninstalling/deactivating all apps until you find it. or start from scratch with the factory reset, add apps and check


text:
How does rooting and unrooting work?
How does rooting work?
What kind of code/programs the manufacturers don't want to install in the phones (so that people have to root)? Why?
Can it be unrooted too?
Thanks in advance.

I advise you to use the search functionality of this website. The two questions you have posted so far already have  answers somewhere on this website a few clicks away from you. In order to better understand how to use this website, visit our [help].

Thank you, Firelord.

Related: What special privileges “/system/xbin/su” does have w.r.t. root access?

Question is very vague.
Root access is access to the root system of the device, usually the user is restricted to an environment that only allows reading of the system, and other data that is needed or added is added to the partition called Data.
Access to the root system allows modifications of system files, and sometimes root applications require root access to do this.
However Android is literally running on Linux, and linux has many ways to change your id to root, once you've obtained root permissions and a root id, you can modify system files to allow root access through a program like SuperSU.
Root access allows adding & removing or ( RW Read Write permission to the system.
Is it dangerous, well yes it can be...
For example....
 Access to the system allows you to install system applications that can't be uninstalled, if a malicious application or hacker managed to install a virus, spyware or malware.. you would not be able to remove it without completely reinstalling the system.
Why do manufacturer's stop root access ?
It can be dangerous to require root access as i just mentioned, and it also allows users access to area's that they're not allowed to access like the Data partition...
Accessing each partition comes with separate risks and root access means access to everything.
People can pull song's and videos from applications that would otherwise be protected in the data partition for example.
..

Can it be unrooted too ?
Yes, however any modifications made to the system will be permanently applied... Factory reset will not reinstall the system like on Windows... Instead it just erases the Data partition to start from fresh.
This means once the root access has compromised your system integrity.. it is just that, compromised.
However you can reinstall the entire system firmware by using a custom recovery or program on a PC.


text:
How can my recorded data usage be 5x higher than what's shown in the apps list below it?
On the data usage screen, it says 1 GB used at the top, but if I add up the data from the list of apps below, it only adds up to about 180 MB. What are the possible causes?
I'm talking about this screen: https://cdn.guidingtech.com/media/assets/WordPress-Import/2015/09/ImageJoiner-2015-09-21-at-7.07.57-pm_result.png (not my actual screen, just an example)
And -- there's only 3 apps that really used any data (hotspot, maps and chrome) because the rest (about 10 others) only used less than 1MB and so it's really easy to see and I'm not miscounting.
I have an S7 Active running 7.0.

I have understood your question, but haven't quite understood those screenshots. In the screenshot everything looks fine. You gave an example screenshot, but it is not sufficient, you need to give your device's actual screenshot so that we can understand the problem clearly.

No, I don't need to include a screenshot of my device. The screenshot wasn't even necessary -- I just wanted to be extra clear the screen I was referring to. All you need to know is the data usage summary at the top far exceeded the list of apps below. It is the default android data usage screen in the settings.

How often do you disconnect mobile data or are there frequent coverage holes on your daily way? How large is the data packet size your MNO uses for calculating the data usage (10KB, 100KB or larger)? Smaller data connections are rounded up to that value. In case of frequent disconnections this may end up in a lot of data usage by rounding up.

I solved this. It was due to having the wrong APN settings, which like Robert said, probably caused a lot of issues even though I was in an area of good coverage. It was an unlocked phone.


text:
Stopping ongoing app updates
How do I force an abort on ongoing app updates happening on my Sony Xperia Aqua Android mobile? It is slowing down all other processes. My cell is setup to do updates when it finds a wifi connection, so I can turn wifi off, but I need it for the other things. Wish there was a way I could put the update downloads on hold and then resume after I'm done using the wifi.

Few solutions:

Open Google Play Store. Goto Settings -> Auto-update apps, then select "Don't auto-update apps". (But Google Play Services and Google Play Store will be updated regardless of this settings).
You can install a firewall and block Google Play Services, Download, Download Manager and Google Play Store to block updates. Unblock them when you need to update apps.