text:
Nexus 5 isn't recognized by USB
I just tried to connect my Nexus 5 to my Computer via USB but it does not show up anywhere. There is no sound of a device connecting and the Device Manager doesn't list a new device when I plug it in. MTP and USB Debugging are enabled. The cable I'm using it not the original one, but was advertised as a charger + data cable. I've tried connecting my device to both my PC and Laptop, but neither shows anything, but the device starts recharging as soon as I plug it in.
Anything I could've missed? Drivers? Settings?
Thanks in advance

Might well be the cable (being, other than advertized, a charger cable only). Have you tried a different cable? Even if you were missing the drivers, device manager would list it at least as "unknown device" otherwise.

I don't have another cable lying around right now, but I'll try to get a hold of one. I suspected the cable being the problem, but I didn't want to contact the vendor yet (cable is 4 months old) in case I missed something.

To me, the cable is the most likely cause. I'd say take your device, cable, and laptop with you to a local vendor/shop, tell him your problem, and ask whether you might check with some of his cables. To be fair: in case one of those works, buy it from him if the price is OK.


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How to install cyanogen mod 12 lollipop?
I have an unrooted Samsung ace 2. How do I install cm 12 lollipop on it ?

Your phone is not official supported by CM12, but there is at least an inofficial build some enthusiasts created. Go to CM Unofficial Ports List. There are two inofficial builds created by different teams, so take time and read which one seems better.
But in such inofficial builds not everything may work, also I think you should somehow know what you are doing before starting to flash such ROMs.

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/

sort: votes


text:
Call forwarding from device 1 mobile network to device 2 data network
My brother's new job is underground with no cell reception or 3G. He wants to leave his phone upstairs so it can receive calls and SMS, and somehow forward them to him downstairs to Android / PC / Mac (any of these would be fine) that are connected to the office Wi-Fi.
The upstairs phone may or may not be connected to the same Wi-Fi network; it may just have 3G.
Is there any combination of apps that can do this? And if the request is confusing please let me know.

Welcome to Android Enthusiasts! I'm not 100% sure as I've never tried it (I don't like "network hopping" for privacy reasons), but Airdroid might be able to do that. Oh, speaking of: Your question is off-topic here ("is there an app for X", see our [help/on-topic]) – and should have been asked on SR instead :)

Google Voice could work, if your brother ported his number to Google Voice (about $20). His cell phone could even be off, yet his computer would be able to receive the calls, since Google Voice can route calls to any numbers associated with its accounts. This method would allow text messages as well.
Alternatively, he could get a brand new Google Voice number, and have his cell carrier forward calls to that number if his cell phone is out of range or goes to voicemail. This would only work for incoming calls, though, not text messages.
Granted, this solution isn't Android-specific, but I'm not sure an app on his phone would be the best solution anyway.

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/


text:
Baseband > 2.0.1700.48 won't work without proximity and light sensor working?
I have the same circumstances as Nexus 4: Stuck on boot animation for baseband version != 2.0.1700.48 and android version > 4.3. I have repeated the first two sets of tests, with precisely the same result. I am currently running build JWR66Y (4.3) which comes with baseband 2.0.1701.0, which I have back-patched with the baseband from the previous release, 2.0.1700.48. Attempts to upgrade past 4.3 fail.
The coincidence that stands out is that I, too, just had a screen repair done. Before my screen broke I was happily running 5.1. Even after the screen repair, with a broken proximity sensor in place, it still ran 5.1 just fine. The trouble happened with I returned to the tech who fixed the screen with a complaint about the proximity sensor. The tech insisted that he could not get the proximity sensor to work. We finally agreed that he could just leave it out. That lead to the current problem.
So I wonder if the difference between baseband 2.0.1701.05 and 2.0.1700.48 is that 2.0.1701.05 checks for either the proximity sensor or the light sensor (they are on the same board) during startup, and hangs the boot  waiting for the sensor(s) to come ready. This idea could be tested by repeating the test before and after doing surgery on a working Nexus 4. That's a lot of work, and fortunately I can't do it myself (no working Nexus 4 proximity/light sensor board!). But maybe someone has relevant experience.
If you look around on the net, you see lots of Nexus 4 problems relating to 4.3->4.4 upgrades failing, lots of Nexus 4 problems relating to the proximity sensor breaking after screen replacement, and several apps that do nothing but disable broken proximity detectors. There also hints that the exact placement of the rubber grommet separating the proximity and light sensors from the front glass is critical.
The reason my question is interesting is that I could go back to the tech and ask him to replace the proximity sensor (so the thing boots in 5.1) and hopefully adjust the sensor grommet (so the proximity sensor works). Even if the proximity sensor never works again, I could still use one of the software solutions that disables the proximity sensor.

I have good news.  My tech put the sensor card back in my Nexus 4, reversing the rubber grommet that separates the sensors from the front glass.  The promity and light sensors then both worked, booting from 4.2.2.
I then used the stock image of 5.1 from https://developers.google.com/android/nexus/images to update the phone to the latest L release.
Everything works.  I take this as good evidence in favor the hypothesis that the absence of the sensor board was causing the boot loops described here and in the earlier article.

Small correction:  at the end of the first paragraph "...booting from 4.3 with the baseband from the previous release."


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How do I stop the "Connected as Installer" when connecting to computer? (LG G3 Lollipop)
When I connect my LG G3 running Lollipop to my Mac, the phone connects as an installer. The Verizon Mobile finder window pops up and my phone notifies me it's connected as an installer.
I have changed the USB connection option to "charge only", but the phone continues to pop up the Verizon Mobile window periodically. It's not really running as "charge only"
What am I doing wrong?

It mounts a disk or something, right ?


text:
Parted says external SD card has no partitions, but Android can still read it
I have a 16GB external SD card that I'm currently using for my music collection. Android reads it just fine, and CWM mounts it perfectly. I'm on Gingerbread (I have my reasons).
I opened up adb shell and used mount to figure out where this SD card was mounted. It listed the SD card as being /dev/block/mmcblk1p1:

I opened this device up in parted (parted /dev/block/mmcblk1p1) and used print to find out what the partitions were on the device. To my surprise, it says there are... none:

How is this possible? Android can mount it and read from it just fine, but parted apparently thinks there are no partitions on it. I get the same results when it's unmounted.

you're just running parted wrong,
instead of
parted /dev/block/mmcblk1p1

it's
parted /dev/block/mmcblk1

and at the (parted) prompt
(parted) print all


text:
Keyboard Switcher-Does Not Display on Navigation Bar
I have the Nexus 9 and the HTC folio keyboard.  I cannot get the keyboard switcher to display in the navigation bar.  I have checked the settings for apps and both Google keyboard and Swiftkey apps are enabled and the notifications boxes are ticked. I want to display the switcher so that can turn off the folio keyboard which is a battery hog.

things have changed a bit in Lollipop. On the Nexus 6, for example, there's a new softkey you can use to change keyboards.

I only have this icon when the device keyboard is activaated. And even when this does display it doesn't show the Folio keyboard.  I a looking for an easy way to turn the keyboard on and off.

was the Keyboard activated through the app?
you should be able activate the keyboard through the app.
alternatively, you can go to:
settings.
language and Input.
and select, selector Icon.
or in the Language and Input menu Choose you keyboard.


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turning off email preview on lock screen after update
Galaxy S4 just updated to latest Android and now my email is previewed on my lock screen. Any way to turn this off?  I'm using Gmail. Thanks

Go into Settings > Sound & notification > "App notifications" and set Gmail as sensitive (as shown here: https://youtu.be/GNFE-S42wgU )
If you want to prevent all apps from showing notifications on the lock screen go into Settings > Sound & notification > "When device is locked" and set "Don't show notifications at all"


text:
USB Debugging grayed out
I'm on an unrooted Verizon Galaxy Note 4 running Android 4.4.4.
I have not accepted the Lollipop preparation updates, because Android 5.0 on Snapdragon processors is known to have poor performance when using Gear VR.
In the last week I've noticed that USB debugging is grayed-out, even when plugged into a Windows 7 computer. I have tried using different USB cables and different computers.
I need to be able to use EasyTether, which requires USB debugging.
I have tried rebooting to Safe Mode, but this didn't help. USB debugging is still disabled.

Is it because I have deferred the OTA updates? How can I restore USB debugging without accepting the OTA update?
I've been using Samsung KNOX for months now and it hasn't interfered with USB debugging. Has something changed with Samsung KNOX?

It's probably because of the fact that you are running a Verizon phone. Carriers like Verizon tend to replace parts of the firmware (Bootloader, Android itself etc.) with their custom one to restrict things like Network Unlocking.

I have used USB debugging as recently as three weeks ago on this exact same phone running the same version of Android.


text:
Volume control: is there a really silent setting?
I like to listen to the radio in the background with earbuds. So I turn the volume down all the way, but in the lowest setting the volume is still about two to three times as loud is I want it to be.
Is there a way to tune the master-volume (or the volume of one app) to something less still than 1/10 without going totally silent?

Which device? Which version of Android?

FP1 with 4.2.2


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Images not displaying in Galary folder
In samsung galaxy ace s5830i the photos in sd card are not displaying in galary folder why? That is some image folder are not displaying but it is there in myfiles folder. Even songs are getting removed automatically from playlist why it happening like please someone help on this.... Recently im facing this problem. Plsss help.....

possible duplicate of http://android.stackexchange.com/questions/25676/how-do-i-make-older-images-in-my-sdcard-dcim-folder-show-up-in-gallery

See http://android.stackexchange.com/questions/68802/images-are-not-being-scanned-in-kitkat  and http://android.stackexchange.com/questions/32925/how-can-i-regenerate-thumbnails-folder-in-dcim as well.

As per question number 68802 i try to download fx apps but im getting erorrcode 927

Please do mention that the error you're getting is in Play Store. It is not obvious always because you can download an app from a browser too. Anyway, for the error, see this http://android.stackexchange.com/questions/103564/error-927-while-updating-youtube/103570#103570

Thanks for your reply but i need answer for the first one please help what will be problem

Check if the folders you store your photos in have a file called .nomedia in it. It is used to flag folders for media players (gallery, music, etc.) not to scan


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Does an auto touch app categorize my device as rooted
Does using frep categorize my device as rooted. My device is not rooted right now.
It is an auto touch that can be used without root

Are you asking if your device is rooted?

Frep doesn't necessarily require superuser permissions. A more complicated setup as described in the Google Play description can suffice, though su permissions certainly streamline the process.
So, your phone isn't necessarily rooted. It could be, but it could very well also be not rooted.
That being said, if you say

My device is not rooted right now.

You're the authority on your own device.

authors: กมลเทพ นําวงษ์สําราญ


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Unable to install apk files
This problem started around a couple of weeks ago when I tried updating some apps via the play store and it downloaded perfectly but the installation wouldn't progress. Nothing had changed before and I'd be stuck on the installation screen with no other option but to cancel it since it would seem like to take forever to install even a <2mb app. Since then I cannot install apps either from my sd card or via play store. The installation would just not proceed. Any fix to this apart from factory resetting my phone?(Moto G 2014 Android Lollipop 5.0.2)
Also I do not have any screen dimmer apps running in the background.

Rooted or not ?

Unrooted and running stock everything.

Tried installing apps from PC, using a software like Moborobo or something ?

How would that solve the problem? I need to install apks using my package installer at some point in future.

But, if you can, then we can pinpoint where the problem exactly lies, and then we can proceed about fixing that, right ?

Okay. I will try it and let you know :)

Take your time. No problem. :)

also maybe cleaning download manager or package installer data can resolve your issue

Check with re-signing in to your Google account.


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How do I Save the password to a friend's router on my LG REALM Smartphone?
Each time I try to connect to this router it requires me to enter the (very long) password.
I do not have to do that when I use my own router; I get connectivity without entering a password each time.
What's going on?
Thanks. batpark

Connect using WPS, and save the connection. If you can't, then browse around your own router's settings. There should be some option related to remembering old connections, but it depends on the Android version and whether the manufacturer has replaced it with one of their own or not.

Or also, as rjt.rockx said,
you can use the WPS recovery tools for connect to router directly.
some apps can do that for find the WPS password :
WPS Connect - Google Play
With this feature, you can easily connect to any Router if WPS have it.(without need to entering again the password)


text:
Force Android Update to Samsung Galaxy S3
My Samsung Galaxy S3 which is on EE's network is currently still running Jelly Bean. Is it possible to push an update through to this, or force install one? If so, how do I go about doing so and what are the risks involved. I would be happy with either KitKat or Jelly Bean.
The device is currently rooted if this would help.

Have you checked if you can update via "Settings > About Phone > System Updates"?

@1990clb I have tried this, as the device is rooted they don't give you the option to update

You could use a custom ROM to update, to 4.4 (Kitkat): http://forum.xda-developers.com/galaxy-s3/development/i9300-to-n00t-bring-lte-fun-to-3g-t2886574/


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How to root "Infocus M2" (smartphone on sale at snapdeal from March 2015 in India) so that pre-installed apps can be removed?
Infocus M2 is on sale at snapdealdotcom. Its specifications are as below:
4.2-inch (1280 × 768 pixels) 355PPI LTPS display
Android v4.4 (KitKat) OS
1.3 GHz quad-core MediaTek MT6582 processor
Mali-400 MP2 (500 MHz) GPU
1GB RAM, 8GB internal memory, Expandable memory up to 64GB with micro SD
8MP Auto Focus Camera with LED flash, f/2.2 aperture, 5P lenses
8MP front-facing auto-focus camera with LED flash, f/2.2 aperture
Dual micro SIMs
3.5mm audio jack, FM Radio
3G, Wi-Fi 802.11 b/g/n, Bluetooth 4.0 + BLE and GPS
2010 mAh non-removable battery

Would appreaciate help on rooting this mobile. Thankyou

Querying Google with How to root Infocus M2 results in this link at first page http://www.androidrootguide.com/2015/04/how-to-root-infocus-m2-and-install-custom-recovery.html I can post the content as an answer but that's not worth if the guide fails to root your device (if followed properly), not to mention that would be just copy-paste and nothing else. Try it and post ([edit]) the results.

Since its a MT6582 processor, SP Flash Tools and MTK Droid Tools can also help. Google them for their latest version and support for your device's chip. These tools are  well known amongst Mediatek users for their  capabilities.

Basically, all you've to do is install USB drivers and use iRoot software to root your Infocus M2.
Be aware that this will void your warranty.

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


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Google Search Bar Widget is gone from Galaxy S5, it is not in the widgets section anymore
My Google Search Bar went missing (I did not delete it). Every fix says to hold down the home screen and re-add it, however, it is NOT in the widgets section anymore. It is completely missing.
I've tried finding it in Play Store (not there), I've tried using a different launcher other than Touchwiz (Nova), etc. I just want the bar back and have it Google Voice enabled.

The same thing happened to me and here's what worked:
Go to Application Manager and keep rolling right until you get to the "Turned Off" header. My Google Search was there. I simply had to turn it back on and then it appeared back in the widget options and I was able to pick it up from there and move it to the home screen.

What is the "Application Manager"?

Lost my Google toolbar after a Lollipop update.  Find a space on your main screen (without icons) and hard press for a second or two until your widgets screen appears.  Flip through the screens until you locate the Google toolbar.  Press down on it and move it to your main screen.  Voila!!  Problem solved.  Hope this helps.

OP said : Every fix says to hold down the home screen and re-add it, however, it is NOT in the widgets section anymore. It is completely missing.. Do you realize it now? Its not there in the Widgets anymore.


text:
Can I set up one android phone, create a backup and restore it in multiple phones?
Where I work, we give all salesmen an Android phone with a set of multiple preinstalled apps, a predefined contact list, some predefined settings and restricted permissions over the phone's configuration.
I am responsible for setting up all of these things before giving the phone to the user, and it is a very repetitive and long process (almost an hour). I am looking for a smart way for automating or shortening the process as the set-up is always the same except for certain account information:

Set up the brand new phone with a unique gmail account we create for each salesmen. (THIS IS ONE OF THE STEPS THAT REQUIRE A UNIQUE ACCOUNT FOR EACH PHONE).
Install all predefined apps.
Set up all predefined apps.
Restrict permissions (using an app).

I'm thinking that a viable way of doing this is to completely set up one phone manually and do a complete backup of the phone to a computer. Then, in the future the only thing that I would have to do is to "Restore" the brand new phone with the backup and change only the settings that differ from user to user (i.e the phone's gmail account, the play store's account, the Whatsapp phone number, etc...)
Is this possible and viable?
How could I do this (which app could I use)?
The only caveat I can anticipate is that the original phone would be set up with a particular gmail account, phone number, etc..  Will I have any problem changing this setting in the restored phones?
Thanks !

The user wrote this much but didn't register! Anyway, you can find many backup solutions for unrooted phones here http://android.stackexchange.com/questions/28296/full-backup-of-non-rooted-devices I prefer  complete adb backup.


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ANdorid Lock Out
I have a S5 but I forgot the password thinking that if I locked it using android device manager the new password would allow me access but it didn't. my question is if I wipe my phone using ADM will it open the phone or would it still be locked after I wipe.

If you factory reset your phone, the lock will be gone. But all of your Data will be lost as well.
You could probably try it this way to avoid loosing all your data:
Android lock screen password not being recognized


text:
Frequent login failure on Yahoo Mail from GMail app
I have added my Yahoo Mail account to Gmail app on my Android phone (Samsung Galaxy Note 3, latest Gmail version)
However, ~5 times out of 6, the app fails to log in to Yahoo (the username/pwd and other settings are clearly correct since it does succeed in connecting once in a while).
Server is android.smtp.mail.yahoo.com, port 465. SSL/TLS security
Error is "Username or password is incorrect".
What could be causing this and what can I do to fix?

I encountered the same issue. I didn't find a solution yet, but I'd like share my opinion on the possible cause of this issue.
After I re-try the sign-in, the sign-in page shows an error indicating redirection loop or proxy loop error.
Sometimes, I get error message saying that I'm trying to login from an unexpected country, and I have to verify the log-in with a SMS message.
Some other cases, if I login the www.yahoo.com with the browser, with password and CAPTCHA, on the same connection, I re-try the login in gmail app, it works.
Most of the time, in the gmail app, when I re-try the log-in, I just get a dumb error message that leaves no clue.
My theory is that the yahoo server does a lousy job when it tries to balance between the user convenience and security. The server is too sensitive to "suspicious" login attempt, and didn't have a better way to offer CAPTCHA validation with the gmail login.

Gmail used to logged in to Yahoo using regular IMAP, but recently it was changed to Yahoo authentication which failed frequently.
The solution is to find a copy of the Gmail 5.1 APK, install it,  and setup your Yahoo mail. This version allows you to setup regular Yahoo IMAP.
After that,  you can upgrade to a more recent Gmail version.

You can just add it manually as IMAP instead to get the same effect.

No point in manually installing old APKs and stuff from iffy sources.


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how to setup tasker for bt on call
could someone help me with this?
I want the tasker to automatically turn on the bt,and switch off wifi and data when a call is made or received...
also to undo everytning after the end of the call....rreturn to previous state....
Also need to connect automatically to my headset after the bt is enabled...
I cant cope with the % % and the orders of the tasker...
please if anyone could help it would be great

Solution:
Profile : Event > Phone Offhook
              Enter Task: BT On, WiFi Off, Mobile Data Off
              Exit Task: BT Off, WiFi On, Mobile Data On
As long as your headset is paired and on, it should reconnect automatically.


text:
How do I disable the bootup sound on (TMO) Samsung Galaxy S6 Edge?
I have a T-Mobile Samsung Galaxy S6 Edge that I would like to disable the bootup T-Mobile 'jingle'.  How do I disable this?

Have you tried turning down the volume on your phone before booting? Turning down the ringer volume did the trick for me since Android 2.3 (and does up until now on Android 5.1).

1. You can use Silent Boot - Google Play
2. also you can do this with Root access and Root Explorer :
Goto -> /system -> media -> audio -> ui

and rename this files :

PowerOn.ogg
PowerOff.ogg

to something like this :

PowerOn.ogg.disable
PowerOff.ogg.disable

but, there's not non-root method that guarantees silence the Startup sound.

As this is my first Android phone, how exactly do I "root" my phone?

how exactly do I "root" my phone? : How do I root my Android device? this is another question! or ASK a new question please.


text:
My android can't log in to Wifi networks with Captive Portals
It used to work about a month ago.
Whenever I went to the mall, or this one coffee shop, and also at 7-11 outlets, I would get the notification "Sign in to wifi network", then I get redirected to their login page when trying to visit any webpage in my browser, I sign in, and I can connect after.
But I have been playing around with my android in the past month

installed AFWall+ to allow only Opera Mini to connect on 3G
installed ProxyDroid to view the traffic on one of my games (and to get infinite gold lol)
added Charles Proxy certificate
installed and uninstalled XPosed framework
other stuff

And I just recently realized, I never get the "Sign in to wifi network" notification anymore, and I just get a cannot connect error on the browser.
It seems my phone's ability to sign in to captive portals has been completely broken somewhere along the way. It used to work 100%, now NONE of the places work.
Is there any way I can fix it?

In afwall there should be a program listed as CaptivePortalLogin. Give that program permission to access internet.

Can you provide more details, please.

For my xperia phone, stamina mode was the culprit. Disable stamina mode and everything works fine.


text:
Moto G Dual Sim Data Roaming Not Working
I have a moto G dual sim. I recently upgraded to Lollipop from Kitkat and I have the same problem as others. I cannot connect to Data Roaming. Wifi is no problem - I have checked the two boxes Data Enabled and Data Roaming. Nothing happens. I tried the ping test you suggested to another user, I get a failed message response. Any ideas. It used to work perfectly under Kitkat.
Peter Sand

There should be problem with your internet settings or ROM.

Goto 'settings' > Sim settings
Check the default sim for mobile data.

Try the following steps:

Go to Settings > Mobile data > APN
In that Tap the Menu and Select 'Reset Default'(or similar option).
By doing this your android phone will automatically download latest internet settings from the Service provider.
Restart your phone.
If still the problem exists
Delete all existing internet settings & call your customer care to get internet settings.

Even after the problem is not solved 'check for latest update' for ur phone or Reset your phone to factory settings :( & Try steps 1-4 again


text:
An update from Jelly Bean fails at 30%
I have a galaxy S3 SGH i747, Jelly Bean 4.3.  The update is downloaded but every time it attempts to update, it fails at 30%. What to do now?

Can you get the OTA from somewhere on the Web(Trustworthy source)? You can update the system via stock recovery then. It won't void your warranty. Otherwise, are you on wifi or data-pack while downloading the update. You may try Factory-reset to see if things works out better.

Im sorry, i dont think there is any other option. The KitKat update for Galaxy S3 on AT&T is only downloadable via OTA (Over The Air). You cannot update for some unkown reason, that is, unless you are willing to FACTORY RESET your phone in order to be able to update.
(there is another VERY COMPLEX WAY on fixing this, it will involve ADB, Rooting, Putting your phone at risk, and voiding your warranty.... So i would not reccomend that, but tell me if you STILL want me to tell you the other way. But please note that you would be putting your phone at risk.)


text:
Why is my screen turning blue?
i have a samsung galaxy 3 and I dropped it and it cracked which has been fine. Just lately the top left corner has been turning blue and is spreading to the right side and lower what is it and what should i do?

LCD is short for "liquid crystal display".  The liquid is leaking out due to the fractures.  Really the only thing you can do is to replace the screen.


text:
Unable to find files copied from pc to internal storage
I have copied files (around  2GB) to my android phone's internal storage from my friend's pc. But I'm unable to find those files either by using file manager(root) or from my pc.
When I checked my phone's memory usage, it confirms the presence of those files.
Is there any way to retrieve those files.

They should be there, where you copied them to. I suppose in /sdcard or /extSdCard / /external_sd. You may also try searching for the file name and find it that way.

There is an app called 'Diskusage' for android. It will scan your storage, will tell you Folder wise what's taking your space and you can explore them. It should see your file unless they are corrupted and not mapped in MFT of filesystem. Alternatively, 'ES File Explorer' App also has a scanning feature but I like Diskusage more. Give it a try after Rebooting your phone.


text:
Android Bootloop No recovery mode - only viberation
Phone: Huawei honor 3c
I downloaded Emotion UI 3.0 for "probably" the wrong set form here offical site.But it was installed properly. Then there was an update of same emotion UI, which on installation put the phone in bootloop on restart. This is what phone does

On pressing power button, it vibrates without going into recovery mode or showing logo - just a black screen
The phone vibrates after every 15-20 seconds, which is probably an indication that it is restarting again and agian
Pressing Power button/volume up/down keeps does not make any difference
Partition is not shown in my computer (when connected to laptop)
Using ADB: Command adb devices or adb wait-for-device do not list any device
Windows device manager shows "MediaTek PreLoader USB VCOM(Android)(COM5)" under Ports (COM & LPT) which indicates that phone is detected but before anything happens it reboots

I've gone through several threads on this topic and nothing helped.
Please help.

Try USB JIG:
Had a issue like yours. I have heard of USB jig but couldn't find any all around Nepal. I tired by myself (finding easy guides via internet). At this first attempt I could n't. Maybe I wasn't that good. But Maybe you can find around to buy or (ebay/amazon). I think it would most probably work for your case.

The proper way to browse Chinese/Russian sites is this: Instead of browsing the url directly, you put the url in the Google search, then click that small link called "Translate this page" besides that link in the result! You would have not made a mistake and selected the proper ROM for your device.
Coming back to the topic, I've flashed stock ROM on two MediaTek based phones recently and based on the symptoms (VCOM USB Driver appearing and disappearing), I can suggest you to first download the correct ROM for your device from here (Look down in the section called SP Flash Tool Flashable ROM) and then use the SPFlash Tool to flash it.
If you keep the SPFlash Tool open before inserting the USB cable, the tool will detect the phone and start communicating on the VCOM port and the connection will be stable. After that, you can flash the ROM back to your device.
Note: This is going to wipe your phone completely and erase any existing data on it. If your phone is totally hard-bricked, I can't think of any way of recovering the data unless you take it to the service center.

Take out your battery for 15 seconds and then try booting it into recovery (power + vol down or power + home + vol down) Hope this helps

did that already .. no , its not working

You might want to check out riff JTAG box


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how do i add a shortcut to homescreen in #materinova launcher?
I downloaded the latest nova launcher named #materinova.15 , in its previous versions I could add a shortcut by holding a blank space in the home screen and chose shortcuts, but in the latest release I can't find any options for adding shortcuts, though I can put apps  on the home screen by going to app drawer and holding and dragging the app to the home screen, but I can't find the shortcuts. Please help, this is my favorite app so don't want to leave it for this little bad thing?

What do you mean by shortcuts? Do you mean those shortcuts that you pick from the widget picker?

The material redesign of Nova launcher is still in beta, and therefore may be missing features.  If you absolutely need to use shortcuts now, I suggest reverting to the latest stable version.  For that you either leave the beta test via the G+ community, or simply download the APK from here.

That's because they are sorted alongside all the widgets. That's not very intuitive but at least they're here!

Wow, you're right. That kind of sucks, very confusing. I also hate the new widget list in general: it is much slower to navigate than the old list, where each item took up much less space.

1) open the "nova action" widget
2) locate the app you want to add to the home screen and longpress on it.
The "nova action" widget is the 1st one in the nova widget drawer, if its not on your home screen you need to add it 1st


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Using PIN instead of a password for encryption on Galaxy S3
I have a Galaxy S3 with OS 4.4.4 and am required to encrypt it for my job. I greatly prefer to use the PIN lock screen instead of the password due to the annoyance of having to type in the password every time you want to check your phone.
After updating to 4.4.4 and setting up the phone from a factory reset it will ONLY allow me to choose "Password" for the lock screen type when I go to encrypt. However, I have been able to select both "Password" and "PIN" before 4.4.4/factory reset. (now the PIN option is grayed out and says 'Turned off by administrator, encryption policy, or credential storage').
What exactly has caused my phone to no longer accept the PIN? Was there some update to the security settings? Is there any way to restore the PIN functionality?

It is not possible to change the PIN any more in the settings because everything except the alpha numeric password is greyed out. The solution is Tasker together with Secure Settings:
Create a task "ChangePin", add an Action "Plugin", "Secure Settings" and choose "Password/Pin" under "Dev Admin Actions" as Action. Choose "Enabled", "Pin Code" and enter the new Pin code, then run the task.
This action will also change the encryption password to the weak PIN, so proceed to the next section. For more details you can check at Samsung India site in its support option.

Doesn't secure settings require root? Is he allowed to root his phone when he is also using it as work phone?

just wondering, is this "everything is greyed out except password" a Samsung feature or a general change within the Android OS?

I found a way.. Download any certificate, to your phone and install it. It enables the PIN option.. :)


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Moved out with my router : Location services don't get it
So I moved out, carrying along my WiFi router. I set it up at my new place, but now, every time I use a location service, it recognizes my router and places me at my old address... Any way I can force the new location to be recognized for my router?
Thanks!

Seems like your IP's location has not changed. If you have a static IP (commonly used in the US, less in Europe) then you need to wait for the record to change. Make sure you have informed your ISP that you moved.

@gianttree - this is a location services issue not a IP problem.  Google has stored his network's location as the previous location

AFAIK your location is stored at your ISP's network switch (at least where I live). Google may or may not save that location based on various different properties (MAC, IP, SSID etc).

No, this is nothing to do with ISP.

Do you have multiple access points that moved with you? Even something like a wifi enabled printer that you forgot about might do it, even if you changed the SSID of your main wifi AP.

To submit a request to Google to have them update their database, send feedback from within the Google Maps application.

Open Google Maps.
Touch the menu (three lines).
Touch 'Send feedback'.
Touch 'Report location issues'.

This what Google requests you do.
To address the problem without contacting Google:
The location databases use the MAC address of the router. On most routers, you can change the MAC address, which will prevent your old address from showing up. If there are other access points in your area, this may also be sufficient for the location service to return the correct location.

On most routers you CANNOT change the MAC address using the normal configuration options! It requires special software or a non factory firmware. Fortunately it apperas that changing the SSID is enough for Google's wiif location service to not use that wifi network for location services.

I have the same problem with a WLAN router I have bought recently. When I connect my mobile without GPS on it usually places me at the location of the former owner.
I assume the router location is bound to the router's unique MAC address - not to it's IP or the SSID which both have changed now.
ZdNet's article says, the location database will become updated when connecting a mobile with it's GPS "on" to this router. More info about Google's location service can be found here.

Do you have multiple wifi access points that moved with you? If you changed the SSID on one of them, A Google device may use the others for location services. It could even submit the new SSID back in to the database with the current incorrect location! I don't know if the MAC address alone influences location services, but it must be tied to the SSID (both a MAC and SSID match are required to recognize an AP).

Another possible solution is to change the SSID on the router. That should force location services to retry its location

Same Problem here.
FIXED. Took about 5 mins to update and correct location.

Connect your mobile to the Wifi router with GPS on. Run Google maps and ensure the blue dot moves to correct location (Get sat signals near window). Mine gradually glided from old address to new.
Connect a tablet (Eg. I used Samsung S2), connect to Wifi and turn on GPS. Run google maps and again ensure blue dot moves to correct location (get sat signal near window)
[Prob optional] - Get you home location on google maps by dropping a pin at your new address and calling it Home. I also changed Icon to a house

Once blue dot had relocated on a couple of devices with GPS, then my laptop / desktop also updated the blue dot location. (on closing and reopening G maps)
hope it works for you too.
Wile E Coyote

This worked temporarily on mine, but went back to the old address the next time I connected to wifi...

It apparently take as while, and possibly data from multiple devices, for Google to update their wifi location database. So when GPS location service is turned off, or the GPS signal is lost, it reverts back to the wifi location service which can contain outdated access points for quite some time.

FIXED: I had the same problem, my router is a gift from my brother who is in Cape Town, which is about 1400km from me. But my phone started showing that I was in Cape Town which was frustrating.
What worked for me is the following (I use Huawei B315s router)

Used routers IP to view it's dashboard from my computer screen
Updated SSID
Under System --> Device Information --> Refresh

Location updated instantly on my phone.
I hope this helps.

What worked for me was to download a "Fake GPS" app on my phone, placed the fake position on my house and activated the WiFi position setting.
Then I just waited several hours and at the same time opened Google Maps every now and then.
None of the solutions above worked, but this did.

I found a fix for this. Worked beautifully for me but YMMV

Open Google Maps while connected to Wifi so it bounces to your old location
Open Your Timeline. It should have your old address/suburb listed
Click on the address/suburb.
Click Edit.
Scroll down to the bottom and click SEARCH FOR A PLACE
Search for your new address and choose it.

Google Maps SHOULD now associate your wifi AP to the new address.

The router location seems to be linked to a database of locations, referred to in Google's 'Location services' by its SSID. So ...

Turn location accuracy to GPS only on your phone and let it find
itself correctly.
Change the SSID of your router to something new. This may have to be a permanent change as I don't know how quickly Google purge unused entries.
Turn location accuracty back to high, using your router as a location hint.
Check location on Google maps, fingers-crossed it should now be ok, and stay that way.

Hat tip to @user276467 and a Netgear forum for putting me on the right track.

Turn off Developer Option under Settings -> System and restart your phone and it will clear any mock location data.  This worked for me.


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I have an emergency. Lost Android
We have lost an Android phone. Every possible aspect that could make it more difficult has happened to be an encouragement to surrender.
We do not have the IMEI, it does not have access to internet that we know of (Unless the thief connects it to Wi-Fi), and so on. I was wondering if there is a way to locate the phone via Cellular Towers. I know a tower CAN locate a phone using just its connection strength. Maybe that's a good solution??? Any help is appreciated! :)

You have two ways to locate your device:

If your phones gets some cellular data, try going to Android Device Manager and remotely wipe it to make sure that nothing is traced.
File a police report. Sometimes, it can communicate between nearby towers and get some signal nearby. Tell them that you lost your phone and may suspect that your phone is taken already.

Hope this helps. It will give some helpful ideas when you lose a phone.


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what is com.sec.android.providers.downloads?
I happened to notice this app(?) had access to virtually everything on my Galaxy S3.
Seemed a little strange so I googled it trying to find out exactly what it was for.
I never did find what I was looking for but I did find several pages of complaints about its effect on battery life.
I would guess it has to do with the download-manager but that's just a WAG.
Can someone tell me what it's for?
Roy

That's just the download manager for all apps that use it like Play Store, your Web browser and others. Samsung modified it and IIRC they tend to go all-out with permissions, asking for everything "just in case".

Out of curiosity, what does WAG mean?

Sorry, commonly used for "Wild Ass Guess", thanks for the answer BTW - roy

all providers.downloads does is act as one of many content provider aps included in the android stock system to act as a security feature so that apps cant directly access other apps but have to use content provider apps to exchange data between eachother.
 we all know apps by default cant access other applictions data.
      Thats where Content Providers come in to play, acting as a buffer between your internal apps and data and all the other 3rd party apps which have potential to be rouge/malicious.
      Without this bouncer there would be no telling how many insecure transactions would occur between our devices and attackers in the free world global enviroment we exist in today.
The app EZ Disabler pro version states this discription about
com.sec.android.
providers.security
"this package is a core sytem service that handles secure reads/writes to/from the database in your device. It keeps rouge apps for accessing data in your device."
The android developers site has this info posted about content providers and their functions.
android.provider
Provides convenience classes to access the content providers supplied by Android.
Android ships with a number of content providers that store common data such as contact informations, calendar information, and media files. These classes provide simplified methods of adding or retrieving data from these content providers.
For information about how to use a content provider, see the Content Providers developer guide. link to guide below..
https://developer.android.com/guide/topics/providers/content-providers.html
By the way..ehem..
     infosec is the bomb!
         Check it out my geeks!
a technique for exploiting applictions involving decompiling apk files and checking out the contents of its AndroidManifest.xml file for any registered content providers as well as the smali files for all uris used in the app.
http://resources.infosecinstitute.com/android-hacking-security-part-2-content-provider-leakage/
        and below is a link to the sample apk they made for the training example on infosecs site.

link to the sample apk file infosec made for the example exploit they posted  https://drive.google.com/file/d/0B1Hhtp8rYK8YczdGcVBtLU1xRHM/view?usp=drivesdk


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All the info of Google "My Maps" in offline mode
Using Android 5.1, I would like to use all the information of "My Maps" in offline mode, but I do not find the way to do it.
I mean, I've downloaded the map of a city to be used offline and it works ok. If I am online, I can insert one of "My Maps" and browse over that map the points I inserted (click over them and see the associated information). However, if I am offline, I can not see that information. Does anybody know how to store it?
Thank you very much.

Simply put, you can't do pretty much anything other than viewing the map. Check out the support page of the Google maps.

I was looking for the same thing and came across this: http://travelingchic.com/how-to-create-a-custom-google-maps-itinerary-use-it-offline/


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Can an Android device's security be circumvented when its screen is being changed?
I had shattered the screen on my device (both touch and display) and it was locked with a password.
I took it to a nearby repair shop, and they took a long while to do touch-testing out of my sight after the screen was changed. The duration (about 20 to 30 minutes) made me quite anxious since I could see them touching it but not what they were doing on the screen.
Was it possible for them to have accessed the data in the phone (which was behind a pattern lock) by somehow circumventing it?
I also saw them plug the phone into a device which they said was related to testing, but it did not look like a computer. Is it possible to brute force "crack" pattern locks (or even passwords) within a few minutes with that kind of device?

This is no different from letting someone use a phone whose screen isn't broken.

Given the right tools, many things are possible. A pattern lock can be broken by a smudge attack, and there are methods to disable it via adb. Question is how likely that is here, or whether there are other explanations: like a device for screen calibration (repair shops might have something like that to be used on "locked devices"). Somehow they have to check whether everything's fine (or if there're "blind spots"), right? A "shiny new screen" is useless if not working :)

Excellent comment, please do post as an answer so that I mark this resolved. I also realised that it might be possible to perhaps build a device that can quickly "mirror" or "snapshot" the storage and memory of a device that the attacker can later break in leisure. Best not be in the position described in my question, I suppose.


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How do you make the music volume louder than the highest volume on the Sony Xperia M2
I recently got a new phone and the music volume continues to decrease so I was wondering if there is a way to make the volume higher than the max volume on the Sony Xperia M2, also I have already put the sound enhancements on so I need a different way.

Have you checked these questions? This question has already been asked multiple times here :) See e.g. How can I increase the number of volume levels?

Has it been about music and for the Sony Xperia M2

What makes you thing adjusting volume has to be device- and sound- specific? Though we cannot generally rule-out device (or ROM) specific stuff, we can "rule it in" only using the Sherlock-Holmes-Algorithm: When you have excluded the impossible, whatever remains, however improbable, must be the truth. So may I ask: Have you "excluded" – i.e. tried the other recommended solutions? :)

Yes, hence the question

Ah. In that case: could you please [edit] your question and point out what you've tried and how it failed (e.g. error messages / installation issues / no-effect-at-all / …) – so we might be able to narrow down things?

Ok. Do you have any suggestions on improvement

Yes. See my previous comment. I cannot do that for you – you must provide those details. And before we have them, I don't see how we can further assist you, sorry.

We? Or the general SE we

We. All. Everywhere. Except for those having your device in their own hands, literally. Our crystal balls are all out for maintenance currently – and we haven't been told when they will be returned.

I asked a question which could have been a straight answer yet you decide to use the extended, criticism filled method

Sorry, Joshua: I wrote multiple times we need more details to give a "straight answer". You never provided those details, so we cannot give that answer. Tell me: how far is it from my aunt Grace to the next bus stop? Can you answer that without me providing you with information on where she lives? // Count me out now, please. I tried to help as good as I could – but that was as far as I could go. Good luck!

Alright, fine. I'll edit or make a new post this is no democracy

You can try Volume Booster app which increases maximum volume by 30-40%.
Alternatively, have a look at the Play Store search query here. There are many other applications in Play Store which would meet your needs.

Root your phone.
Install ViPER4Android Audio Effects app.
Click 'Yes' to install drivers.
Select 'Super Audio Quality' in Preferences.
Click 'Accept'.
Now reboot the phone and open the app.
Click the 3-dot option at top right to open options.
Select UI Settings and enable 'Expert' mode.
Now in "Phone Speaker" tab, click 'Enable' under 'Master Power'.
Under 'Extra Loud'
i. Enable it.
ii.Select 'Effect Strength' as 'Extreme'
iii. Select the 'Max Gain' as required (recommended: 8x)


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Google Photos Add a Location on Multiple Files
I am using Google Photos for my archieved photos. I have lots of photos from past(When the Photo Location not involved)
Now i want to add the location for my Photos to organize them.
It is possible for 1 image. But there thousands of them. Is there possible way to do it Folder by Folder or Multiple Photos Selection and Add Location to them?

You could download them, use something like exiftool to change the metadata (like location), then reupload.

This can only be done through desktop on Picasa web albums as far as I know, but Picasa shares photos with Google Photos, so it should work.

Put all your photos with the same location in an album (you can do this with Google Photos)
Go to Picasa Web Albums and find the album.
Under "Actions", click "Album map"

This will bring you to the album map. Once there, click "Edit map"

Click the first picture in the album to select it, then while holding shift click the last picture in the album.

Drag the pictures out onto the map. You may want to find your location first.

If you have the photos on you android you can use the android app https://github.com/k3b/APhotoManager/ . it has multi-selection support and you can use a map to select the geo-location you want to assign.
Unfortunately the app only works with photos that are stored on the android device.
The free app is not available on google play store but you can get it via f-droid or download it via https://f-droid.org/repository/browse/?fdid=de.k3b.android.androFotoFinder
Howto geotag the photos

Start the app in gallery view
use the "filter" menu/icon to find photos you want to tag:

filter by folder and/or date range
additionaly select "[X] With no geo info"

==> the gallery is populated with all photos that do not have a geo-tag yet
via multiselection mark all photos that should recive the same geo location.

long tap on the first image ==> it is marked with "[V]"
short tap on additional images from the same location

use the "set geo" menu to start tagging

select "pick from map" if you want to pick the geo-location from a map
select "pick from photo" if you want to pick the geo-location from a photo that has geo-location

authors: ميلاد ابو كارن


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High Battery Drain with CM11 Stable on HTC One due to MediaServer
What's the best way to fix a high battery drain?
I had been using an old nightly build on my HTC One (since no stable had yet been released for it), and I had no battery issues. Just sitting in my pocket all day, the battery would still be at 75% by day's end.
Then I upgraded a week ago to the most recent stable (CM 11-20141112-SNAPSHOT-M12-m7), and now my battery's completely dead in about 3 hours even if I don't use my phone.
The battery statistics app says that the "Mediaserver" is consuming 45% and "Google Services" is consuming another 39%, which seems insane. Historically, "screen" is usually the biggest consumer, but that's now at only 8%.
Googling shows this is a common problem with CM, and there's a ton of different causes and fixes. What's the best solution? I picked a stable release because I thought...well, it would be stable and relatively bug free. It seems counter-intuitive to upgrade to a nightly to fix one bug, while likely introducing more.
A common solution mentioned is to "disable Google Now", but I don't have any such app installed.
Another solution is to disable location reporting for Google Services, but they don't mention how. I think they mean disabling location reporting under "Google Settings", but this effectively disables all apps that use GPS, and I use Google Maps and Navigation quite frequently.

Did you find in your research terms like keep awake, wakelock (partial, kernel, etc) and apps like Wakelock detector , Amplify, Battery Stats Plus, Greenify, DS Battery Saver, etc. What are your results with them?

I don't remember a one-stop solution in an answer on AE, but there are many good answers. You can try this simple search on AE http://android.stackexchange.com/search?page=2&tab=relevance&q=battery%20drain


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Android not remembering which music app was in use last when pressing headset play/pause button
My phone has developed an odd and hard to reproduce problem lately.  I have been listening to a lot of audiobooks using BeyondPod.  Throughout the day, I often pause and resume the tracks using the play/pause button on the headset.  Usually this works without a hitch, but at random times it will launch the basic Android music player and start playing music, rather than resuming my audiobook where it was last paused.
When I listen to music, I use Rocket Player.  I have never intentionally launched the basic player.  I used to have random conflicts between BeyondPod and Rocket Player, but after being told by the Rocket devs that they couldn't control which player got control if I had headset controls enabled in both players, I just started switching off the headset controls in Rocket Player when I wasn't using it.  This worked for a while until recently when the basic player started launching instead.
I have noticed that it seems to forget that I was using BeyondPod primarily if it has been paused for a while and other (non-music) apps have been launched.  This leads me to believe that it is caused when BeyondPod gets deprioritized out of active memory.  However, I have been unable to force it to make this switch on purpose.
Is there any way to be able to select a system-wide default music player so it will stop launching the basic one?  I couldn't find a setting for this in my phone.  Alternatively, is there a way to mark an app as "higher priority" so it is less likely to be kicked out by other apps?  Any other thoughts on solving this?

Phone: Samsung Galaxy S4 (Sprint)
Android: 4.4.2
Rooted, but on stock Samsung image.

Clear Defaults, if any, in your installed music players whether System/User installed. You can do so  by going into Settings -> Apps , choose your app and clear Defaults. Now, open your preferred File Manager,  tap any music file, system will now show you options to open the file with shown music players, select the one you want for highest priority and choose Always. You're good to go. Post it as an answer it if works.

My current nexus 6p automatically opens google play music when pressing headset play button, instead of the previously used Smart Audiobook Player. Very annoying. My previous nexus 5 with android 7.0 did not show this behaviour. This is not about a default app for certain filetypes as the comment above suggests, it is about the default interpretation of a play button press. All I could do is disable google play music, but now the play button doesnt do anything unless I manually start an app. Did you ever solve this?


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Recover photos and videos from s3 (no sd or root)
Basically someone deleted photos from my dads phone. He doesn't have a sd card and his Galaxy S3 is not rooted. Is there any way to get them back?

I am not sure if you can recover data from internal memory, normal recovery softwares require the device to be in USB/ Mass Storage Mode for it to detect the device to scan.
There is one method but it requires the phone to be rooted and it's a long process. If you are interested here is the link to it

Won't rooting it make the phone lose all the data?

Depending on the mobile carrier, the phone may have pre-installed software that has been backing up various files to their servers.  For example, my S3 from Verizon has something called Backup Assisant Plus that came with the phone and was on by default.  I would check the settings in the phone and the carrier to see if the phone was sold with a default backup system.


text:
Closing internet access for some apps
Is there a way to prevent some apps from accessing to internet when wi-fi or mobile data is on?


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Restore an Android Backup to an Android Emulator
Is it possible to backup my phone, and restore it to my computer to run under and android emulator? If so, how would I go about doing that?

Do you want to backup only the apps, app data, settings, etc. or complete phone backup (encompassing partitions)?

Theoretically, it should be possible. In order to do it, you need a custom recovery in your phone to perform the backup and a custom recovery, too, to perform the replacement in the emulator.
TWRP has a custom recovery for the Android emulator and it's currently under TWRP's support. If you have the same recovery in your phone, it could be an option to perform the backup (make sure you're backing up only the data and not everything else, system images between your device and the emulator are probably different).
Although seems like an impossible task, by playing with the TWRP settings you could get your phone's backup to work on your emulator. You just need to handle the inconsistencies between the two of them.

My point is OP didn't really make it clear whether requires only Apps+Data backup or full system backup. If we consider only Apps+Data as you did so, why not use Helium or any other apps data backup app? Not that I deny your answer, but if the goal is only to backup Apps+Data, then why take the hard route when easy is at next door.


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What are the ways to increase device Screen On Time?
I have a device with 2500 mAh battery and I usually get around 3hrs+ Screen On Time. Are there ways to gain some more juice...?
[I am a rooted user, so any method (root/non-root) are welcomed.]

The Screen On Time (SOT) depends on lots of factors like the way you use your phone, apps that you have installed, the strength of the mobile signal in your area, the data service that you have (2G, 3G, WiFi, LTE).
So it's hard to suggest anything specific.
What you can do is- use any battery statistics app (Like Better Battery Stats or Wakelock detector) and find out the apps/ services that are draining the battery. Then you can restrict these apps/ services based on your needs.

Greenify and Amplify Pro (didn't use but heard) apps as well.

I already use Greenify. Need other methods like scaling cpu frequency etc. for that matter..

For frequency scaling I use Synapse and its good, real good. I under-clocked my device's CPU to avoid constant overheating. I'm recently introduced to this and this app uses some UKM (I'm yet to learn).


text:
Restrict Background Data
When I enable Restrict Background Data the pop up says that some apps and services will not work unless the device is connected to WiFi.
How can I know which specific apps and services?

The apps that requires constant internet connection and cannot be run without it. But they will notify you.

I've tried lots of apps but the only one of them complained about background data: Google play store. It doesn't want to work without background data.
All apps I ever used work fine with BG data restricted.
I recommend not use the restriction for downloaders, SoundCloud (if you are listening to the music, it will stop buffering after you minimize the app or turn off the screen); some messengers and email clients may stop receiving messages while phone is sleeping.


text:
Is there a protocol for android which allows direct file modifications from computer?
Both the MTP and PTP protocols for file transfer do not allow editing or viewing files on  the phone from computer directly. In other words, you have first copy the file from the phone on the computer and then view/edit it. Are there any alternate protocol that support viewing/editing files directly?


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Cannot read Android Partition Image created using ADB
I am currently working on a Mobile Forensics demonstration for my college's computer science capstone. For this demonstration I have been trying to create a partition image of the an old Droid x2 user partition and then examine the resulting data using forensic software. However neither FTK imager, nor Autopsy have been able to read the created image files.
I have been working with a rooted Droid x2 running 2.3.5, and have been using Android ADB to try and create a dd image.
  'adb shell dd if=/dev/block/mmcblk0p16 > userdata.dd'

This command seems to work and creates an appropriate sized image file but various forensic software give errors such as 'does not contain valid evidence.'
I have tried creating .bin, and .img files to similar effects.


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Tesco Hudl Hardware Problem = bin?
My boy has a Tesco Hudl 1 - been trying to stop it crashing that is was doing very regularly.
Did a full system reset with power on/vol up and reformat.   On restarting after this with completely clean system it glitches again.    Sometimes not even getting past the boot logo.
My feeling is something wrong on the hardware side, and this thing is destined for the bin.   Bad RAM?
Any Android specialists out there like to confirm fears?

I contacted the ebay vendor who sold me the hudl.  He recommended full charge and reset button again.
It boots now at least.  Will try to install just one or two apps and see if its a software issue, and download any updates.  Hope this helps someone in the future.


text:
How can I run a shell script when some WiFi is connected?
I have a really simple shell script, that just adds a route to my internal development machine. This is useful, as that machine has some LXC containers inside, so I can reach all my containers from my cell phone (to test websites from mobile browser, or Asterisk SIP accounts from CSipSimple)
#!/system/bin/sh
su -c "ip route add 10.0.3.0/24 via 192.168.0.200 dev wlan0"

To use this rule, I've created a new Local connection on ConnectBot, with the script name as login command. This works great.
However, I'm too lazy. I just want to know if there is some way to apply this script, as soon as I connect to my home WiFi automatically. Maybe something to execute a script on every network change, as I could check from same script if I'm connected to my home WiFi using dumpsys and some grep magic.

Have you looked at Tasker?  That's generally the go-to app for triggered automation tasks on Android.

Thanks @Matthew, I've used AutomateIt and Shell Plugin, and works great! That solve my problem. However, maybe someone could explain if Android triggers some script at network changes, like other Linux variants do with ifup-ifdown files

I wouldn't be surprised if there was, but I'm not familiar with that sadly.

I'm still looking for such a tool, since I just can't accept to install an 18MB monster like AutomateIt just to run a one-liner script.

Matthew already pointed to tasker for this task (uh) – an app I already use for years. So let me add the steps to achieve this. Obviously, a pre-condition is the device is rooted – but the su command in the question tells me it is. So here we go:

Condition: State › Net › WiFi Connected
As parameter, include the SSID of your WiFi network, so it doesn't fire on alien networks :)
Task: Script › Run Shell
Here you add the name of the script to run (full path), preceded by an exclamation mark (to indicate it must be run as root)

This should do it. Not tested myself, as I have no routes to add :)


text:
Can Telegram notifications be disabled?
Can you disable Telegram notifications somehow? I am seeing a huge battery consumption since last few weeks and after upgrading to Android 5.0.2. After one day of use battery app is reporting that Telegram has kept mobile radio on for 7 hours. Using 50% of the battery used.
I use telegram rarely. I would like to completely disable notifications, but I cant find any option for that. I have tried disabling notification service and everything.

First, AFAIK, "Notification Service" makes reference to receive notifications in Telegram about every new update (changelog or "What's new"), as well as another announcements which Telegram staff may consider important for you to know via Telegram chat.
Second, Android Lollipop has a new way to manage notifications per app. Enter Settings screen for your device and follow these steps:

Note: Screenshots taken from my Sony Xperia Z1 running Android 5.0.2,  appearance may vary for your device.

+1 I love your note at the bottom - it sounds like an ad!
Fast-Speaking Fine Print Voiceover Guy: Terms and conditions apply. Appearance may vary for your device. See online or in-store for more details.

Like any other app. Go to settings >> apps >> Telegram. uncheck 'Show Notifications'

Go to Settings --> Notifications and Sounds, and uncheck what's under Notifications for chats.
Then, under the Other section, you can uncheck Keep-Alive Service and Background Connection.
But per your battery consumption problem, it's weird and shouldn't happen. I use it regularly and it's not on my top battery consumers.

authors: กิตติชัย หมัดโซ๊ะ


text:
How do I know which process or app currently accessing camera?
How do I know which process or app currently accessing camera ?
android 5.1, nexus 5, shell access (no root)

I cannot possibly say whether XPrivacy is working fine on Lollipop, but in Android 4.x it had an option called "Restrict on Demand". The camera permissions are under "Media" section. All  you needed to do is apply this "Restrict on Demand"(only on Media) policy by default on all User/System/both apps and whenever some app will try to access this, XPrivacy will require your explicit discretion by popping up the details on screen. :-)

I think you should look on web for some advanced permissions manager for your said Lollipop version. If that manager has this auto restrict on demand like feature, then you have your answer right in front of you. That's as far as I can hint I assume. I should mention that mostly, these managers or likes of it requires root access.

Try going into settings>privacy>privacy guard. It shows which apps has permission to camera, location, etc...
Also, when you're viewing all your apps in your setting, when u open them it usually shows which apps have which permissions.

I meant which app is currently accessing camera

Can't help with that then. Not sure. Within the same settings shows how many times it has been used also. So try there. At least that's how it is on my phone

I don't think it is exposed to user interface, any os level trick is what I am looking for

Also, the menu Privacy > Privacy Guard doesn't exist on AOSP Lollipop, perhaps you could mention the device model, Android version and if it's on custom ROM?


text:
How do you turn off developer mode on an s5?
I turned developer options 'off', but is there anything else that needs to be done? Not my phone so don't want to mess anything up :-)

I'm not sure what do you want, but AFAIK, you can't hide developer option after someone enabled it. So, the only thing you can do is just turn it off and never open that option again.

You can actually hide the Developer options permanently from the menu until someone enables it again. Just follow this -
Menu > Settings > Apps > All apps > (find) Settings > Clear data > Confirm

Developers options will be turned off automatically although they are enabled by following the above step.

Would it not wipe the custom settings (under Settings) as well?

I've never tried (and I don't want to) for myself but I think you'll lose all other settings too. It's just a method to hide Developer options as OP is so concerned about messing with them.

After Developer mode is disabled, that will put your phone back into the same state that it was in before Developer mode was enabled.  It will disable all developer options that could lead to security issues (Allowing ADB, etc.) and the slightly power draining options (show touch, running processes) that are open to developers.
However, as @Andrew T. points out, you won't be able to hide the developer options.  The only way to re-hide them is to do a factory reset (which probably isn't worth it).

Yes, there is a way to hide it. But the options like USB debugging, if turned on, will  remain turned on.
It'll only hide the developer option.
Steps:

Go to Settings → Applications.
Swipe and go to All applications.There will be an app called 'Settings'
Click on it → 'Clear data'.

Now, the Settings app will  automatically close. Open Settings app again and Developer options should be gone.
It worked on my Android phone (running KitKat).
Note that it will only hide the options, but the settings would remain as it were before. For resetting the options, you need to do it manually.

You have just copied the answer MANI left in May.

@RoryAlsop I in the hindsight downvoted the answer at first but later realized that this answer has improved the other answer but the poster deliberately didn't or forgot to give credit to the original answerer. I once read that any answer that is better than the existing answers is always welcomed. Except the credit part, I guess the improvements are legit. However, I also think that improvements here could've been a comment to other answer, so you may be right too. :) Oh well, I made my edit and will let others to decide what to do.

I would suggest making the improvements to the existing answer would have been a much better idea. That is why SE is collaboratively edited.

@firelord Right. But the description of the question says that he had turned off the developer option already. So, there's now only one thing that Mani can do.... It's the thing that I answered.

However, I can't comment on questions due to lack of reputations.


text:
Does the external sd card have to use FAT at all?
link2sd allows one to fully move apps to a second partition on the external sd card provided its Filesystem supports Linux permissions. but does it have to be a second partition or could I simply format the entire card e.g. ext3?would this still work when USB connecting to my PC?

I would suggest you to create a separate ext3 partition for Link2SD. The ext partition can be accessed in the windows pc if the phone is connected in mtp mode. But not otherwise like connecting through a external sd card reader

@sameer can't you post this as answer? but isn't the internal card ext3 and still shows up in windows?

As long as your sd card (internal/external) is inside phone you can access them in your windows pc.

@sameer so basically the answer is yes, so long as the card remains in the device there are no downsides? Could you please worst this as answer so I can directly accept it?

Though of course this still needs to be tested concerning working with link2sd

I may suggest not to format the entire sd card to ext3 as some apps which uses external storage wont be able to detect the sd card

@sameer but that would be odd, wouldn't it? apps aren't supposed to do anything deeper beyond accessing /mnt/extSdcard

You can't mount storage with UMS in any arbitrary fillesystem, just MTP or PTP. Depends on what your device uses.

The reason why it can't be a single [FAT] partition is: "Because Android unmounts the first FAT partition to share files with your computer [when connected via USB] but the second partition remains mounted." [Link2SD FAQ]
The reason why it can't be a single EXT partition is because... well, because Link2SD says so:

I guess you could format the first partition as EXT, too.  So technically, no, you don't need FAT at all.  But it's nice to have it, as it's more readily visible to other Android app, and it also shows up immediately when the Android is connected via USB as a media device (MTP).
Now, "You [only] need to use a non-FAT file system (ext2, ext3, ext4 or f2fs) on your second partition in order to link app's private data files." [emphasis added] You can still move an app's binary to a second FAT partition. In fact, when Link2SD detects the second partition, it'll ask you what's the filesystem, at which time FAT is one of the options:

(No link to FAQ because I "need at least 10 reputation to post more than two links".)

There, now you have 10 reputation.

would this still work when USB connecting to my PC?

Yes aslong as the memory card is inside the phone the storage can be accessed in mtp mode in a Windows PC. It cant be accessed if the card is connected via an Memory Card Reader. But there are few plugins or programs to read the content of memory card. Still writing to the card may mess up the storage.
Other disadvantage of creating a single ext3/4 partition is some apps may not recognize them as storage and hence cannot write to them.
I am not sure how Link2SD respond to an single partition.
So I will recommend to create a separate ext partition. But nothing wrong in trying out. Make sure you back up your memory card before trying

authors: Александр Синдяков


text:
How to view on-line or download my Android Contacts metadata including Linked info from Linked Apps
There is far more information about my Contacts in my Android phone then what is visible on-line from https://www.google.com/contacts.
Primarily I am referring to the information from "linked contacts" which Android captures and consolidates in the "People" "Phonebook" on the Android OS.
Presumably, Google is capturing and storing this information from my Linked Accounts (the content is not dynamically being pulled from these apps every time I pull up the Phone book).  I would like to view the total information regarding my Contacts on-line including this metadata... anyone know where this may be available?


text:
Crazy gps path result
I'm not sure if this is an issue with the gps, the app I'm using, or android itself, but since it's android that ties it altogether, I'll try posting this here (let me know if I should move this to a better spot).
I tend to use my phone's (Samsung galaxy S2) gps along with MyTracks app to record when I go on a hike. Mostly it works fine, but every once in a while, I get this strange result:

Obviously, I can't hike this path in a few hours, so something is definitely wrong with the resulting coordinates. I write a quick script to filter out anything that looks too far (anything more then a few degrees difference), eliminating those far off points. I get this:

I try to filter it some more by tightening my error values or random things that come to mind, but it doesn't really work well. I did notice though that all was not lost as it actually recorded the first half just fine and the actual path looks like this:

But the added return path looks like this:

Zooming in to a section, I can see that the return path is very jerky with what seems like many points added all over the place roughly along my path:

And zooming in more:

Any idea what causes this to happen and how I can fix/prevent it in the future?
As a side note, what I usually do is export the gps coords from MyTracks to csv, where I draw them using google maps in some javascript I wrote. The above pictures are from that result. Trying to view the path in MyTracks itself usually results i the app freezing, then displaying a blank map or just force closing,

The point outside Africa is most likely Lat/Long 0,0. Your results are indicating a poor read, without the ability to fill in the query from a local Wifi either. The system filled in the query with the default value  0,0. In the case where the GPS is just a little off, it probably was able to find a Wifi hotspot to substitute for an approximation for the GPS. For the ones of greater difference, that Wifi is farther away, with a local node calling its "home" hotspot for coordinates.

Yes, you are right that 0,0 is the point near Africa (was somewhat amusing when I learned that by looking it up). There are a few 0,0 values in the data as well as values very close to it (like 0.0001), but for most of the hike, there shouldn't be any wifi for me to connect to -it's all forest with maybe one or two other hikers that pass by, nor did I see any houses/buildings. I should have added that during a hike, I turn off the wifi to save power and I don't have data enabled.


text:
How do I set a lock screen wallpaper on the OnePlus One with the latest Android Update?
Okay so previously on the home screen ,I'd press the menu button- wallpapers- lock screen wallpaper and select my image to set as the lockscreen wallpaper.I can't do that anymore after the lollipop update. And also battery has been draining out like crazy after I updated it. This needs to be fixed.

And also battery has been draining out like crazy after I updated it. This needs to be fixed. -- Asking multiple yet varied questions is deprecated on this website IMO. Please ask a new question here, relevant to the  selected italic content. Also, please take a look at how to search(on this website), since battery draining questions have been already discussed  multiple times (might even resolve the issue without asking).

Note: This is a partial answer and is meant to solve the Lock-screen wallpaper issue only.

One way of changing the lock-screen wallpaper in CM 12 (the update for OnePlus) is:
Go to Settings → Themes →tap the wrench icon in your current theme → scroll down to Lockscreen Wallpaper → Pick Image (choose the image) → tap Back button/key once and tap right icon to apply the custom theme. Done.

Just touch the home screen for long and then select wallpaper, then there will come an option to change the wallpaper. Slide it to right side and there will come another option for lockscreen paper. Select the option from Gallery then you can change lock screen photo.


text:
Allow 720p videos on YouTube app
My device is Atrix 2 with resolution of 960x540, but YouTube app only gives me options for 144p, 240p and 360p, which are not really "quality". How can I watch 720p videos on YouTube on my device?

Yes, sure. It's every video that I try to watch that can be viewed in only 144p, 240p or 360p. So I gave up on off. app and installed "Viral" but it's not working good right now, so I wan't to try and fix off. app for good.

Probably related (although outdated): How to watch videos in 144p, 240p, 360p, 480p, 720p on YouTube app?

@AndrewT. For the accepted answer I'd say that it's outdated, but about modded YouTube - maybe I should try that while I search for the fix.

Your screen resolution being 960*540 is not meant to play 720p videos  because the resolution is lower. That's why the Youtube app detects the device resolution and does not show higher video qualities. The maximum video quality that the Youtube app will show for your device is 480p.
720p = 1280*720

However, you could use YouTube Vanced. It is a modded version that offers more features than the official Youtube app such as:

Override Maximal Resolution

Preferred Speed and Resolution

For rooted phones, L Tweaks, an Xposed module, allows to set video qualities up to 4320p.


text:
I cannot see folders on my sd card
I was trying to transfer some music into my phone so as usual I connected it with my USB, however, out of the 48 folders I have I could only see 14... I already tried to check the "hidden" folders but I'm still not able to see those folders. Help please? BTW, I have a LG G3 phone, in case anyone wants to know.

Connect as Mass Storage mode instead of MTP mode.

@MANI As per this page and some others on web, this device comes preloaded with Kitkat which doesn't provide USB Mass Storage Mode. //Mary: If it helps, you may consider  this app called MTP Alternative which can enable you to see all the folders that you are able to see in Android itself. Otherwise, you may look at any method described in my answer here http://android.stackexchange.com/questions/91900/is-there-a-viable-alternative-to-mtp-for-file-transfer/106323#106323


text:
Gmail labels or folders
Does anyone know how to create a new label using an Android Tab s.
I have tried all the Internet pages with no success.
Kind regards
Paul

You have to log into you Gmail account on a PC (or via Chrome/Browser etc) and create the label from there.
You can't create labels using the Gmail app unfortunately.

To Add a label to your gmail in other email accounts you own
Open chrome
Invoke gmail
This will bring you to mobile browser
Tap three dots in corner
Select go incognito
Invoke gmail again
Sign in
Clock 3 straight lines (top left)
Scroll down and select desktop
Add label as you would on computer


text:
Unable to send and receive calls in Galaxy Grand 2 after kitkat update
Last week I updated my grand 2 to Kitkat 4.4.2 and now I am not able to send or receive any calls from my device when I dial any number it gives me the message "not registered on network", I have searched many solutions on internet but they are not helping me because after making 1 or 2 calls may device again stops making calls. If any one knows how to resolve this issue kindly help me, I am frustrated because of this issue as I am not able to do the basic tasks from my device.

A factory reset would solve the problem. Just remember to make a backup of important data.

I have already done the factory reset but it was of no use to me as it worked for some days and after that I am again not able to make or receive calls.

when you say you "updated your phone" I'm not sure exactly what you're referring to. If you got an OTA (over-the-air) update from the settings menu in your phone (direct update from your mobile carrier), then you'll need to call the customer support for your carrier. They can usually reset your network settings remotely or walk you through troubleshooting the issue. If you updated it by rooting your phone and flashing a custom rom (you'll know if you did because it's a complex process that takes at least an hour) then you should try to flash a different rom. I've personally had problems with several roms not being able to place calls. Hope this helps!

Yes i did got the OTA update, plus i tried inserting another sim in my device , but it is also not working in my device.

Since it was an OTA update, definitely call your service provider and they'll troubleshoot the issue. There's really not much else you can try on the device besides that. You could try to go into the about page in your settings and run all of the other updates if you need your device working right now. On the same page that you did the OTA update, try to 'Update PRL' and 'Update Profile', then reset your phone. If that doesn't resolve the issue, your service provider customer support is your best bet.


text:
How to export annotations from mobi/epub files?
So I use FBreader for mobi/epub ebooks and I highlight lots of text.
How can I export all the highlights I've made into another file (or share them all with the Internet)?

OK, this might not be really relevant to this post, but for other FBReader users who are stuck at the same, I'll share my (rough) solution:
Note: This should be specially relevant to Icarus eReader users! Icarus e-ink readers come with a modified version of FBReader 2 which is pretty stable on that device but unfortunately very basic too. And you can't even update it! I don't know if newer versions of FBReader can do this by default - sorry if this is obsolete information to most of you.

Using a file manager with root access on your ereader (I use Solid Explorer) , navigate to /data/data/org.geometerplus.zlibrary.ui.android/databases/
Select the books.db file and copy it to a non-root directory (like for example to /sdcard/) that you can later access from your computer.
On your computer, open books.db with SQLiteBrowser (you can't just open a .db file with a text editor, you'll see unreadable code). I guess you can perform this step directly on Android with Sqlite Viewer for Android, but I haven't tried that yet.
In SQLiteBrowser, go to the Annotations table of your database and you'll see all your highlights. SQLB is not the best app for editing text, but there's a few export options.

There you go!

To access that dir, Sqlite Viewer (see Settings) requires FuseDroid , which itself requires SuperUser or SuperSU, which require a rooted device. But Sqlite Viewer says "this app does not support rooted device"

http://ebookfriendly.com/evernote-tips-for-booklovers/
Check Tip #3, exporting through email to evernote with an IFTTT recipe (man, those are cool).
IDK if this works for FBreader, but its worth a shot. Should work for Moon+, most people online seem to be recommending that app for exporting notes.
I'm having so much trouble with this kind of problem. Don't trust when Play Books says it will export your highlights/notes to your Google Drive (a new feature) - I haven't gotten it to work once!

Go to settings in FB Reader on your device.  Set it to synchronize.  Go to https://books.fbreader.org/.  View the book.  Click on bookmarks.  You can export them as text.


text:
Two phone numbers (one USA, one Qatari) same phone, calls and text over cell data. Any suggestions on how to accomplish this?
I need your advice and ideas. I am moving to Qatar in a couple days for work and I am trying to figure out the best cellphone situation. Currently I have a Google Nexus 5 which is fabulous, on AT&T which is less than fabulous (but that is beside the point).
My goal is to have my Nexus 5 with a US phone number (doesn't need to be the same one I currently have) that my friends here can call and text me on, and a Qatari number that my coworkers can call and text me on.
Here is where I am at:

Ruled out AT&T completely because their international plans are absurd.
Getting a Vodafone or Oreedo sim and using it my Nexus 5 (this wouldn't have any way for US friends to cheaply call/text though, so I don't think it is the best option)
Going with a t-mobile sim (they have unlimited data and text in Qatar). I would need some way to have two numbers (one US, one Qatari) that could make calls and send texts over cell data. Google voice is one option but I think it only supports one number.

Anyways, any advice would be appreciated. I have thought about this a lot and done some research but I can't find a way to easily and cheaply do it.
Also, if this question could be better answered or belongs on a different stackexchange site, please let me know.
Thanks!

Android supports VOIP built in. You could get a US # from someone like callcentric.


text:
Remote control android device via ip address
Is there a php code to control an android device based on its ip address. Control can be just up to using applications on the android device.

It's a little unclear what you're asking. "PHP code" suggests a development question, which is off-topic here. Asking for "an app for X" is off-topic as well. If you're looking for possibilities to remote-control your Android device from a PC, you might wish to see my list for Remote Droid 2: Control your Droid from your Computer. Or ask a specific question on SR.


text:
Messages stuck in outbox of Gmail app, but only for Gmail
I noticed messages were not being sent from the Gmail app. I checked to make sure auto sync is enabled and it is. Any ideas? Beside the message it just says sending. I have other email accounts used by the Gmail app (e.g. yahoo) and they work fine. Also I can send and receive find from Outlook on my computer. I don't know what else information to give so feel free to ask for more. I'm using Xperia Z2 with Android 4.4

Is your Gmail app the original? Or is it a hacked version? I used a hacked version multiple times because I wanted a dark background, but that ended up giving me the same problem you have now. If not: did you try to remove updates of the Gmail app? This will give you back an older version of the app and there it will work, even if it's just for troubleshooting ;)

I just had this problem and the problem was that I was over my email quota. Specifically, I was using the GMail app to connect to a Microsoft Exchange Server and sending from my desktop (via thunderbird) worked, but sending via my phone didn't.
I logged into the outlook web-access portal and it gave me an error message saying I was over-quota. Fixed the quota issue now I can send email.

What does out of quota mean for email? I think that Gmail has not had any quota's (max size of inbox or number of emails send or anything) for the last decade.

@Kvothe - I was using the GMail app to send email through my Exchange account. My Exchange account was over-quota.

@Kvothe - To my knowledge and experience there is a limit of a number of emails (or storage size) on GMail.  I have to clean it out regularly, like twice a year,  Because it starts warning me about deletion.  On my brother-in-laws account, new emails are not shown because of the same reason.  I had to show him how to delete old emails.

authors: ເພັດສົມພອນ ສີສຸພັນ


text:
Why my ebook does not show words in my Kindle app?
I have 2 android devices. One of them shows the words. The other one does not. It also works fine in my PC. Please help.

Have the colors for foreground/background been set to the same? If you were to doubletap somewhere you believe a word to be, would a highlight reveal a word? If so, this would indicate merely a colorization mismatch.

All settings are the same

Possible repost your answer might be here http://android.stackexchange.com/questions/111936/can-read-books-in-amazon-kindle-on-lg-4g-tablet/111948#111948


text:
Create Calendar events via Tasker that starts when entering a location and ends when leaving it
I want to use tasker to log how much time I spent at a location.
I would like tasker to create a calender entry when I enter a location and have the end of the calender event be when I leave the location.
Is this possible?

Direct answer: Yes.
What you didn't ask: How :)
Have a location-based profile which fires when you reach the location in question. In the entry-task, create the first calendar entry ("Entered [location]"). Then, add an exit-task – in which you create the second calendar entry ("Left [location]").
You might have to add some checks to compensate for "drops" (e.g. entering the basement of a building might drop you to de-facto "airplane mode" with no cell network, no WiFi network, and no GPS coverage – which might "accidentally drop you out of the location"). So the exit task should contain something like setting a variable with the "current time", then a loop for e.g. 10 times having a Tasker › Wait › 10 seconds and location re-check, and then only log the "exit" when you really "left the building".

If you wish a single calendar item with the start time set to the locations entry, and the end time to when you exit it, a little modification is required:

in the entry-task, set a variable holding the current (entry) time
in the exit task, when submitting the calendar item, use the variable's content for the start, and the second variable's content for the end time of the event.

If your willing to try Automate, another automation app. Here's a flow for it:
http://llamalab.com/automate/community/flows/14


text:
error: only position independent executables (PIE) are supported when I try to run curl on android 5.1
I'm trying to run curl on android 5.1,but this error doesn't help :
root@manta:/root/home/curl/data/local/bin # ./curl
error: only position independent executables (PIE) are supported.

I've got the curl executable from here :
http://curl.haxx.se/

how can I fix this error ? thanks.

Bypassing the new PIE security check : http://forum.xda-developers.com/google-nexus-5/development/fix-bypassing-pie-security-check-t2797731 maybe can help.

I have tried,but it didn't work. Android said that a lot of applications have stopped working.

@LinX64: I flashed that thing, and got a boot loop (CY12, Android 5.0.2, Galaxy Tab 8.4). I had to flash CY12 back again.

Curl is an open source project, so the straightforward answer is that you compile it yourself and enable position independent code (pic) for the compilation. This is very inconvenient, I admit, but I strongly discourage using solutions that disable security features. There are good reasons to only allow PIEs.


text:
how to change the storage from phone memory to internal storage?
Everytime I try to install anything from google playstore it says insufficient internal storage but actually it has internal storage. How can I solve this problem

Not clear what's the difference between "phone memory" and "internal storage" and which one has "actually storage".

Apps are stored on the /data partition, while the empty space you have is probably located on some other location, like internal SD card. Even if you have empty space elsewhere, apps couldn't be installed nowhere but on the  /data partition.
There is a way to make /data partition bigger by resizing your partitions (I've done it myself), but it's not recommended if you don't know what you're doing, since you can end up making your phone unusable.


text:
QFOTA always downloading always 0%
I saw the question about the qfota download update package is always loading but never is complete. I have turned my tablet off and back on. No help.  Called Verizon customer service and they had me do a factory reset. It is still trying to download but always on "0%"....... Help!!!

Q fota,always downloading.
It is over the air,turn off WiFi
Then you will see it downloading,
Then you can turn WiFi back on.

Keep letting it update. Eventually it finishes. No help from Verizon and so I had no choice but to let it run. Took about 6 weeks.


text:
get information from devices which connect to same wifi hot spot
After create public wifi hot spot through phone. How to get device information from those who are trying to connect the hot spot?

There's an app on Play Store called Fing that's probably close to what you want. You don't even need to be the host, it detects all devices on your network.


text:
Certain NFC tags cause NFC to stop working
This is a very strange problem, so I'm sorry if I describe in in a confusing way.
For the past few days, I've been playing around with NFC on my Oneplus One phone. I installed a few apps (NXP TagInfo and Trigger, most notably), and they work fine. I wrote a simple app to scan and display the ID of a tag. This was all working fine with the NFC tags I have lying around (Tag inside a water bottle: NfcV. Other tags: NfcA (I think). They're unmarked, and this is all I know about them).
But suddenly a problem started: One tag, which is inside of a water bottle, scans fine. But the other two tags I have don't. When I try to scan them, they 'break' the NFC on the phone, and it becomes unable to scan the water bottle. I have to turn NFC off and on again to fix it, at which point it scans the water bottle just fine. This problem is very consistent.
I have a Nexus 4 which was able to scan all of the above tags and display the ID, but not read or write the actual data on the tag. My Oneplus is able to read and write data to the tag in the water bottle.
I don't understand what could possibly be causing this. As I previously mentioned, the tags worked just fine earlier. I haven't updated the phone or made any significant changes over the past few days.
Phone: Oneplus One, rooted, running CyanogenMod 11S (The stock software the phone shipped with)

This is normal1 behavior. The Android NFC stack is known to die when the communication with tags is interrupted during certain communication phases. So what you are experiencing is a poor transmission between the phone and the tag. In those cases where the communication between the phone and the tag drops in the "wrong" moment, the NFC service dies and you have to manually restart it by disabling & re-enabling NFC from the settings app.

1) Read "normal" as "you have to accept that things are like this" but not as "this is intended/bugfree behavior".

OMG, you saved me with this, my OPO's NFC stack crapped out and I couldn't write to any tag anymore, and I tried rebooting, clearing the data of the NFC applications, clearing the data of the NFC service and nothing worked, I didn't think of disabling/enabling.