Android Enthusiasts Stack Exchange
Android Enthusiasts Stack Exchange

Questions tagged [system]

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

335 questions
94
votes
4 answers

Uninstall apps 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 uninstalled neither by Manage applications tool,…
alfonso.kim
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74
votes
4 answers

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?
Thomas Vos
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49
votes
5 answers

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 Play. I know that this is a simple question, and…
fouric
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40
votes
4 answers

Symbolic links in the Android filesystem?

Is it possible to create symbolic links in the Android filesystem? If it's possible, how can I do this? My Android version is 2.1, I'm using Motorola Defy.
castarco
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36
votes
5 answers

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 for user apps and not for system apps, and when I…
Chance
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33
votes
5 answers

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 me do this, as this is something I plan on rarely…
earthmeLon
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26
votes
10 answers

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, link2), it looks like I should modify a system file. I…
STiLLeN
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24
votes
2 answers

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 without root? Are there any non-root options that…
user16112
24
votes
3 answers

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?
michelemarcon
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20
votes
1 answer

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 any other Android devices which does not have this…
user285oo6
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19
votes
3 answers

how to mount /system as read/write in android?

cannot mount /system in android with following command, anyone has a solution for this? root@hwG7-UL20:/ # mount -o rw,remount,rw /system mount: Invalid argument 255|root@hwG7-UL20:/ # mount -o remount rw /system mount: Invalid…
iclinux
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14
votes
2 answers

Is there a RAM 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 got me wondering: there is memtest for x86 based…
Peter Grace
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14
votes
3 answers

Getting "java.lang.SecurityException: Shell does not have permission to access user 150" when uninstalling apps from Samsung Secure folder using ADB

I am using Samsung Galaxy A50, Android 11, One UI 3.1. I use Samsung Secure folder. There are many bloatware in it and I could not find a way to uninstall (and disable) them via ADB. Owner profile user is 0, Secure Folder user is 150. pm uninstall…
Halilb1978
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11
votes
2 answers

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 current resource usage (CPU, Memory, etc.) caused by…
Flow
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11
votes
5 answers

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 of my internal storage! I only have 160MB so that…
Diego
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