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

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16
votes
3answers
19k 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?
8
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 ...
5
votes
0answers
2k views

How to prevent shutdown when low battery? [closed]

When I'm using my hacky backlight modulation program which toggles screen off and on fast enough to simulate ultra-dim brightness Android sometimes gets wrong info about battery charge (it sees 0% 0V ...
14
votes
3answers
26k 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 ...
3
votes
1answer
140 views

Phone starts playing podcast for no apparent reason

This started yesterday, and I have no idea why. I noticed my phone was playing a podcast. I've been using BeyondPod for a while, which is sometimes a bit wonky, but never had this kind of problem. I ...
2
votes
1answer
4k views

How can I monitor my phone's activities?

A couple of times I've found my phone turned off when I don't remember doing so, especially when I have a fully charged or nearly full battery. Are there any applications out there that will monitor ...
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 ...
5
votes
2answers
13k 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 ...
11
votes
4answers
104k 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 ...
2
votes
1answer
2k views

What's the difference between Camera.apk and com.sec.android.app.camera.apk?

I'm trying to install a modified version of the Camera app on my rooted Samsung Galaxy S (Captivate) through copying to /system/app and through installing a zip file via ClockWorkRecovery. It doesn't ...
0
votes
1answer
376 views

Will gingerbread system apk apps upgrade over froyo's?

On my froyo , I just found several apk files of gallery, FMradio, etc etc inside "/" directory using filemanager.. I was wondering if gingerbread's system apps can be used to "upgrade" over these ...
2
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 ...
2
votes
2answers
142 views

Is It Possible To Backup Settings And All Customized Stuff I Made On Android Cellphone?

Which backup is that? Full backup that backs up whole system? Or is it only backup that backs up settings and customized stuff?
3
votes
4answers
3k 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.
9
votes
1answer
816 views

Hiding System icons in Notification area?

Does anybody know a reliable way to remove system icons from the notification area? I have a smaller screen on my (rooted, default ROM) Optimus T and I find some of the system notifications icons ...
6
votes
1answer
21k views

Which system files are safe to delete?

I got only 160MB internal storage out of which 100MB is reserved by android operating system. Which System files and folders are safe to delete? For example: de, fr, es and it files in ...
4
votes
1answer
1k 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 ...
57
votes
4answers
116k 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 ...
5
votes
2answers
345 views

What system app stores the cellular network settings?

Before installing a new ROM, I backed up all data from my system apps using Titanium. I installed the new ROM, and also put in a new SIM card from a different network (so it was in on first boot-up ...
10
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)
9
votes
1answer
3k views

How is the default PATH set?

On another linux system I might expect to find a .profile file, or something in /etc used by default. I'm unable to determine what sets the system path for processes not running in a shell.
6
votes
3answers
17k views

What is the effect of changing the maximum application VM heap size?

The settings menu in CM6 lets you change the maximum per-process heap size (internally, that’s the dalvik.vm.heapsize property). What are the practical effects of raising or lowering that setting? On ...
3
votes
1answer
5k views

How can I install additional audio/video codecs on Android?

Does android separate the module between video player and video codec? If so, how do we install more codec to the system?