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

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0
votes
0answers
17 views

Is there an app that just directly records the sounds coming from the same device and not the outside noises? [on hold]

I already have a solution to record the internal system sounds of my device by using SCR screen recorder free version app (not the paid pro version of the app as it also records outside noises) to ...
14
votes
3answers
25k views

What are the differences between a system app and user app?

As I've played around with different ROMs and used Titanium Backup, I see that apps are categorized into system and user apps. Several ROM developers state that Titanium Backup should only be used ...
4
votes
1answer
864 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 ...
0
votes
1answer
32 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
64 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 ...
1
vote
0answers
27 views

There's a way to read more about system incidents in Diagnostic application?

Long story short, we bought a new phone. A 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 ...
1
vote
2answers
74 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
1answer
403 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 ...
-1
votes
3answers
2k views

Samsung Galaxy S3 doesn't respond to some secret codes

Samsung Galaxy S3 I9300 doesn't respond to all secret codes in here . Specially it can restart with non of the codes in the list. Do I have a fake Galaxy S3 ?
0
votes
1answer
150 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?
17
votes
2answers
24k views

How can I deal with unwanted system applications without rooting?

There are a lot of system apps in my mobile that I do not use, and have no intention of ever using. I know that is is possible to uninstall system apps and bloatware with root, but is it possible ...
0
votes
0answers
70 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 ...
0
votes
0answers
33 views

My HTC One froze on the htc screen when rebooting after installing the lollipop update.

I don't know if the update fully installed. How do I get the phone to restart? It is completely frozen. I don't want to lose my photos and messages that haven't been backed up yet. Biggest concern ...
0
votes
1answer
38 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.
1
vote
0answers
34 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 ...
0
votes
1answer
117 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
0answers
26 views

I accidentally moved system files from my phone

guys i accidentally moved the whole system using root explorer to internal mermory then i try to reboot it but it stuck on loading screen my phone is lg F120s. how to get it back? please help
1
vote
0answers
132 views

What is the system APK that handles the calls in ICS?

I'm trying to figure out what system APK handles the calls in Android ICS? I've found that Messaging is the one for SMS, but what is for phone calls? The reason I'm asking is because I'm adding them ...
0
votes
1answer
63 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 ...
7
votes
2answers
4k views

Is it possible to write to a device's clipboard using ADB?

I am interested in learning how to write to (and if possible, read from) a rooted Android device's clipboard. I hope to do so using ADB over USB and I am not interested in installing any apps to help ...
11
votes
5answers
9k views

Disable USB charging

For some reasons not related to the battery life, I need to disable the battery charging when a USB host is connected to my phone (a rooted Nexus 4). Taking a look around on the internet (link1, ...
0
votes
1answer
142 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 ...
4
votes
3answers
218 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
0answers
57 views

Reboot does not run at all

I followed this piece of command copied from this site http://forum.cyanogenmod.org/topic/82875-installing-cacert-certificates-on-android-as-system-credentials-without-lockscreen/ importing the ...
0
votes
1answer
48 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 ...
1
vote
0answers
4k views

Auto boot when charger connected (for HTC Magic)

I want to let Android OS to boot automatically when the charger connected (for HTC Magic) without pressing power button I found this guide: Complete boot when charging If your phone only gets one ...
0
votes
4answers
14k views

I accidentally deleted my android phones system app

Anyone can help me on how to restore system apps like HOME.apk, i accidentally deleted it so the phone is stuck on boot, cant go to its home, my phone is a goophone4s thanks ...
0
votes
0answers
72 views

Updating the system app “messages” on 4.2.2

On Aptoide there was an update for the system SMS app Messages. I updated,and it continually crashed so I uninstalled the updates and reverted to factory. It is now at the bottom of the Settings / ...
9
votes
3answers
19k views

Is possible to make symbolic links in the android filesystem? (and how?)

Is possible to make symbolic links in the android filesystem? (and how?) Thanks in advance :) . (My Android version is 2.1 , i'm using Motorola Defy)
11
votes
4answers
103k views

What is SNS App?

I'm using a Samsung Galaxy I551 with Android 2.2 FroYo. Sorry for my ignorance, but I have not idea what is that app (which came installed and without rooting can't be removed). And it is using 15MB ...
16
votes
3answers
18k views

What's the meaning of signal strength colors in battery usage screens?

The battery usage screen has an indicator for "Signal strength" that, instead of being blue/black like WiFi, has many colors: green, gray, yellow. What's their meaning?
0
votes
0answers
75 views

Minimum set of apk in /system for S2 boot and a minimum launcher

So, basically, I have root access on my S2. The phone is GT-I9100, with Android 4.1.2 Build Version: JZO54K.I9100XWLSD I can remount the system partition rw, what I want to know is: If I do a backup ...
1
vote
2answers
752 views

Some /system/app disappear on app drawer! How to start an app not in drawer?

Android 4.1.2 Somehow the original Home launcher icon disappeared after OTA update, I'm not sure if it's the only app that disappears, but it's the most obvious when I'm testing other launchers. ...
4
votes
1answer
5k 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 ...
0
votes
0answers
311 views

How to enable USB diagnostic port in an android phone?

Currently we are developing a LTE software which need the information from the Phone using QXDM tool.As of now,Most of the USB dongles and mobiles which i bought are having ROM with USB diagnostic ...
0
votes
1answer
28 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
22 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
25 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 ...
0
votes
1answer
769 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
1k 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 ...
0
votes
0answers
286 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. ...
2
votes
0answers
7k 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
0answers
65 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
1answer
5k views

Why does bad Busybox installation in /system/xbin/ cause problems?

I've got familiar with Android not long ago. Having almost no experience, I carelessly installed Busybox, and after that the system started resetting itself after each power-off. It also didn't allow ...
0
votes
0answers
151 views

adb over ssh tunnel

is there a way that I can tunnel adb or a ssh shell over the mobile network to my server were I could preform commands on the phone i.e phone is sitting at work and I log in to server at home to ...
1
vote
0answers
571 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 ...
0
votes
0answers
95 views

My platform.xml is not working and storage and internet wifi etc are not accessable anymore

I was trying to modify my platform.xml to give access for writting to External SD Card.and I got into an another problem mistakenly I deleted the platform.xml file and now when I restarted my phone so ...
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 ...
3
votes
2answers
7k views

Media Storage: what is it, and why is it using all my data?

I am only 5 days into my Billing cycle, and noticed that already like 1/3rd of my data has been used (thanks to My Data Manager)... So I looked to see what has used all this data, and it says it is ...
0
votes
0answers
13 views

Duplicate Provider Authority problem downloading Facebook [duplicate]

I can't download Facebook from Google Play. After it finished downloading, and started installing, a pop-up message showed Duplicate Provider Authority. How do I fix this?