For questions about the internal procedures and processes of the Android system.

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0
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2answers
149 views

Removing dalvik from Android

I have no experience in that so please forgive me if it sounds a bit silly: Is it possible to remove all "user layer" application and DalvikVM from an Android, just to obtain plain linux-based ...
0
votes
1answer
401 views

Phone keeps restarting while system updating

My samsung galaxy core 2 got a system update so I installed it. Eventually it kept going to 90% until it said error and then restarted the whole process. It kept doing the same thing get to 90% say ...
0
votes
1answer
1k views

Extract & repack system.img for Nexus 5 lolipop

I'm following this link to extract; make some changes & then repack system.img which is present in nexus 5 image. (Version Tag android-5.1.1_r9) The guide works for 4.1.1, but not for 5.1.1_r9. ...
4
votes
1answer
471 views

Disable touchscreen input via console

I'm looking for a way to disable and enable the phone's touchscreen via console, and possibly the physical buttons, so to prevent finger touches from being processed. The phone is a Samsung Galaxy ...
8
votes
1answer
21k views

What is the use of Android System WebView?

I have seen some Android phones where this application comes installed on the device. What is the use of this application? (Click image to enlarge) Does installing this app have any advantage on ...
0
votes
1answer
855 views

Access Android System Partition from Linux

What is the best way to access the Android system partition via USB of any device with Linux (not rooted device) Need to change some files in the system folders...
1
vote
0answers
87 views

best way to change files in system partition from a PC (no root)

What is the best way to access the via USB the system partition of a Android device (not rooted)... Through Windows, directly or via ADB Or through Linux, via ADB, direct with console or with shell ...
0
votes
1answer
59 views

Android System Programming [closed]

As android is based on a Linux core, is it possible to use POSIX System Programming tools, techniques and libraries to program and customize the environemnt like I would have done on my Ubuntu for ...
0
votes
1answer
4k views

3G and wifi tweaks explanation required

Where ever I check for build.prop tweaks to enhance 3g or wifi connectivity I see this tweak , can anyone explain what these values are exactly? what is "ro.ril.hep" means ? why given the ...
3
votes
0answers
672 views

Read more about system incidents in Diagnostic application?

Long story short, we bought a new phone: Sony Xperia M4 Aqua dual SIM 16GB version. The phone is on with Android 5.0 and is pretty new, but he doesn't stop keeping restarting itself. (he just blink 2 ...
0
votes
2answers
4k views

Battery Drain from Android OS and Android System

I've got a Galaxy S5 and recently, Android OS and Android system just seem to be draining my battery. Not done anything extraordinary regarding rooting or anything, it's all stock. I can only manage ...
0
votes
0answers
407 views

How to clear sysdump logs from Asus Zenfone 5?

I have an ASUS Zenfone 5 (501CG) 16 GB model while phone is nicely built and good to have if you have one extra power bank. Since few days I see some lag in its UI, I feel it is because of the known ...
2
votes
0answers
97 views

Huge system data on my Blu quattro phone, #9009# does not work

Most of my Blu quattro (not rooted) phone's storage is taken by system data. I checked it with the DiskUsage application (system data takes about 800 MB of my 1 GB of phone memory). I saw this to be a ...
4
votes
1answer
25k views

How to mount /system rewritable or read-only? (RW/RO)

How can I mount the /system directory rewritable or read-only on my Android phone?
0
votes
1answer
49 views

Storage space and system functions error message

I keep getting an error message on my Samsung Galaxy S5 as follows: Storage space running out. Some system functions may not work. In reality I have nearly 400 Mb available.
0
votes
1answer
480 views

Mount /system and /data partition of an android phone in Windows/Linux

How can I mount the /system and /data partition of an Android Phone via USB on a computer? It will need to work with Windows and Linux. I have a Samsung Galaxy S4 with CyanogenMod 12 and working ADB. ...
0
votes
1answer
245 views

How often does Android have to decompress an app's APK and OBB files?

According to one of great answers to this question, Android has to decompress each application's APK and OBB files before the app can be run. Is this decompression performed each and every time an ...
0
votes
1answer
570 views

How to reset your Android system folder

I've done some messing around with root and I want to just restore my galaxy s4 to how it was when I first got it. I've done "factory resets" but all it does is wipe data. I need to restore my system ...
0
votes
1answer
109 views

Clearing System Storage & Ram

Is there any other way to clear System Storage and Ram on my phone? I have a Samsung Galaxy Pocket. I can clear some Ram thru Task Manager, and all apps (that will allow it) have been moved to the sd ...
4
votes
3answers
496 views

How does a phone store date and time even when the battery is removed?

I have seen android phones which do not ask users to set the date and time even if I remove battery and reinsert and start the phone. If I have a SIM card inside it, I understand it fetches date and ...
0
votes
1answer
38 views

my Samsung phone says it doesn't have a rooting system, in laymens terms, how do I fix it

I installed a memory booster/ security device on my Samsung recently. I have always wondered if I actually need all this hardware and apps in my phone. Now it tells me I can uninstall some apps , when ...
0
votes
1answer
37 views

having problem with my lockscreen [duplicate]

I have tried everything, Knox is on, Android device manager is on and its still not working.
0
votes
2answers
31 views

system files application

How to open/access app file folder such as; device;sdcard;emulater0; sdcard emulater; and what do they mean? when i try to open them it says "doesn't have app to view" What is a good app to get to ...
1
vote
1answer
2k views

update.zip just for fixing file permissions, possible?

I soft bricked my colorfly g808 by following this guide (Japanese) http://bl.oov.ch/2012/12/android-421-mvno-sim.html I didnt do it using adb shell but using a terminal emulator in the phone itself, ...
0
votes
0answers
542 views

Error: “read only file system” on rmdir

I have problems with my Google Play so I tried to solve them from this blog, You gonna need Android Terminal Simulator or equivalent terminal app. This will also require your Android rooted. ...
3
votes
0answers
9k views

Is there a list of android system status bar icons?

I'm not sure what some of the status bar icons mean on my Android Nexus 5 device (I'm referring to the icons in top right of screen, adjacent to the time). I've googled frequently but I keep getting ...
0
votes
1answer
713 views

system app not working

I have a widget to turn data connection on and off. Since I upgraded my Nexus 4 to Lollipop, I get the message "widgetsoid needs to be installed as a system app" So I rooted the phone, moved the apk ...
0
votes
0answers
90 views

Flashed system partition differs subtly from system.img

When I flash my Nexus 7 2013 with a rebuilt aosp system.img using fastboot, the data in the partition (as read back by dd) is very slightly different from the system.img data used to flash it. A block ...
1
vote
0answers
608 views

Update last checked ^ 1

When I navigate to settings -> about tablet -> system updates, it tells me updates were last checked "^ 1" instead of giving a date and time like I expected. Clicking on check now does apparently ...
1
vote
0answers
39 views

Installing a font in android [duplicate]

I have a TTF font file which I can double click in windows and click install and that font gets installed. But in case of Android Putting TTF in /system/fonts alone doesn't help Using font changers ...
0
votes
0answers
2k views

Permissions for /system/etc

I was trying to enable writing titanium backups to the SDCard by editing the file: /system/etc/permissions/platform.xml However I was not paying attention and now everytime I boot up I get spammed ...
1
vote
0answers
604 views

How to turn off or disable text font anti aliasing or smoothing globally or just for one app?

How do I turn off font smoothing globally or just for one app like firefox? Can it be done with a mod like cyanogenmod or xposed framework?
4
votes
1answer
16k views

What is “Android Night Mode”, what triggers it, and what are the consequences?

I've just been reading in the tasker UserGuide on variables: Night Mode %NIGHT The current Android Night Mode. One of on, off or auto. If auto, Android will decide whether it should be in ...
-1
votes
1answer
967 views

Google account login error [duplicate]

my google account and password is correct but it keeps saying you entered the wrong password or your account has changed. it still has me logged in on the email but this error sign will not go away.
1
vote
2answers
452 views

Why are apk files are kept in system folder?

Isn't an apk files just an archive which is unpacked when you install a package? So, why should it be kept then?
2
votes
1answer
902 views

Android /d folder

On all of my devices there's a folder called /d on two of my devices it's full of folders, on the other it's empty. What is the /d folder? What is it for? And why is it empty on one device?
0
votes
0answers
266 views

Android system folder permission lockout

I have apparently messed up the permissions to the /system/ folder in android (a galaxy s3 sgh-i747, which is rooted). I think I locked myself out of being able to execute anything in that folder, ...
4
votes
0answers
1k views

Is it possible to disable confirmation dialogs in Android 4.4?

I have an LG G2 which came with Jelly Bean, and I have recently updated it to Kit Kat. I have noticed that the amount of confirmation dialogs when changing phone settings seems to have gone up from ...
0
votes
1answer
287 views

Android installation age [duplicate]

Is there a way to discover when my Android OS was installed? In other word: what is the age of the SO running in my phone (since the last FW upgrade)? I have root access and I prefer not installing ...
4
votes
1answer
1k views

Possible Soft-Brick Fix for my Galaxy S4

So, prior to my stupidity, I made a system.img dump via dd However, after my stupidity (tried flashing some lib files....), I am now stuck with only stock recovery mode, or download mode. How can I ...
2
votes
1answer
491 views

Details on Android OS massive data usage

Yesterday Android OS on my Nexus 5 transferred 44,7 GB (!) data over both WiFi (42,2 GB) and mobile data (2,5 GB). I have no idea why the data transfer started, and I have no idea why it stopped after ...
1
vote
1answer
144 views

Duration of System Update - Nexus 4 (after download) - 4.4.2 to 4.4.3?

How long is it supposed to take to install the system update, I think from 4.4.2 to 4.4.3, on a Nexus 4? I downloaded the 70 MB and after the phone restarted, it attempted to install the system ...
0
votes
0answers
2k views

Problem with System UI stopping

I have an Android tablet with Jelly Bean 4.2.2 installed. I downloaded an app onto it yesterday and then started seeing the dreaded "Unfortunately, system UI has stopped" error message pop up when ...
0
votes
0answers
104 views

Does Android indeed need defragment?

I have recently format(not just wiping) userdata partition on Note 2 N7100 and Tab 7.7 P6800. I also restore /data using nandroid and restore internal sdcard by manually copying files. I notice that ...
0
votes
1answer
66 views

Replacing the system partition without touching the kernel?

So I have an android phone that I'd like to put a clean rom onto, but it looks like there aren't any good kernels ported to it yet. I've done some reading into the android architecture, and come to ...
1
vote
2answers
5k views

Restore deleted system

I have formatted the system using twrp now I can't flash the stock rom on my galaxy s3 sprint. I am getting the file_getprop: failed to stat "system/build.prop" status 7 every time I try to flash the ...
0
votes
1answer
708 views

How to swap UI of a custom rom with other rom?

I have a custom rom which has Xperia like UI. It's very fast uses very less Ram. The other rom has Kitkat/Jellybean like UI but it has low performance as compared to Xperia UI like rom. I was ...
0
votes
2answers
804 views

what app/script is responsible for video media?

When podcast videos or youtube videos or flash videos play, what app is behind that? I'd like to be able to use that script/app to as a trigger for tasker to do something whenever ANY video is ...
1
vote
1answer
3k views

System App Permissions

I have an application that needs root permissions to run. No biggie, all of my personal devices are rooted, so I am very comfortable with the process. The problem is that this application is to be ...
1
vote
1answer
859 views

Where is the Home folder?

On my linux system I have a directory in /home where all my personal files and local program configurations are stored. Where does Android store that type of file?