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

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64
votes
4answers
129k views

How can I uninstall applications that are locked by phone vendor?

I'm using a Samsung I9000 and I have some annoying apps that came pre installed by the phone vendor, like a music store, a custom web browser and other memory leaking apps. Those crappy apps can't be ...
20
votes
2answers
30k 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 ...
15
votes
5answers
15k 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, ...
3
votes
1answer
20k 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?
11
votes
4answers
110k 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 ...
0
votes
4answers
25k 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
1answer
421 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. ...
17
votes
3answers
33k 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
2k views

Is it possible to disable the system update notification?

I have a Nexus One that I want to keep at v2.2 for testing purpose. But the update 2.3.4 has been pushed to my phone and I keep seeing the notification to install it. Is it possible to disable the ...
1
vote
1answer
5k views

Install adb enabled setting from zip

Is it possible to make a zip file, similar to the one that installs GApps, that stores ADB debug mode as a system setting? Maybe somehow modify a system bootup script to change the ADB debug mode ...
36
votes
3answers
40k views

Is Android a 32-bit or 64-bit OS?

The title is pretty much self-explanatory: is Android a 32- or 64- bit OS? I assume that it is one or another and not both, as that would force both 32- and 64-bit binaries to be hosted on Google ...
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 ...
8
votes
1answer
18k 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 ...
5
votes
1answer
2k views

How can I monitor and visualize the current resource usage (CPU, Memory, etc.) caused by the running Apps?

I am looking for typical per app/process resource usage information (CPU, Memory, etc.). This information is often useful to find and identify misbehaving apps. How can I monitor and visualize the ...
4
votes
1answer
6k views

How to give root access to apps that don't request it?

I've been using the app SystemPanel for some time now to archive my Android apps. It works great, but it cannot archive apps that have been installed under /data/app-private, because this directory ...
23
votes
3answers
25k 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?
11
votes
2answers
5k 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 ...
2
votes
0answers
5k 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
1answer
234 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
1answer
12k views

Is there an internal memory test for Android devices?

I need to fix a friend's phone this evening that has suddenly produced loads of android.process.media and com.google.process.gapps errors. I am going to reinstall the OS as it's an older ROM but it ...
5
votes
2answers
16k views

How do I install an apk as a system application?

I'm trying to install an application in the system/app folder of a device. It needs to be done since I'm writing a QAT program and the tests need to run with a few privileges not available to third ...
3
votes
1answer
491 views

What Android parts do these terms describe?

Android users frequently use a lot of words with unclear meanings. In particular, they use these words a lot: Framework / framework-res.apk: What purpose does this structure serve? Flashing: What ...
2
votes
1answer
489 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 ...
3
votes
1answer
23k views

How to mount system in rw mode if no custom recovery

When I changed my build.prop for spoofing another device model, I copied build.prop from another device having gingerbrad but my system is froyo. When I rebooted, I lost my internet connection. It ...
3
votes
2answers
11k 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 ...
3
votes
4answers
4k views

Free system information for Android such as Everest for Windows [closed]

There is any apk that shows the system and hardware information about my Adroid phone??? I mean an aplication such as Everest (or msinfo32) does for Windows.
1
vote
1answer
598 views

/system cannot be remounted as RW, even when rooted (Sony Xperia E3)

I rooted my Sony Xperia E3 (D2203) a while ago using Kingroot, which worked flawlessly. Before rooting my device, /system could be accessed, which is how root was installed in the first place. ...
0
votes
1answer
783 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...