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Questions tagged [system]

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

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1answer
21 views

How can /proc/sys values be changed at boot (sysctl.conf does this on normal Linuxes)?

How can /proc/sys values be changed at boot? sysctl.conf doesn't exist on Android and echoing values to the proc files isn't persistent.
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15 views

Methods to modify Ambient Display

I am trying to modify Ambient Display as the one in my ROM is missing on some features, such as Pick up and Hand Wave gestures. I have researched a bit and found that Ambient display feature(s) ...
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20 views

Unable to copy the files to /system/app

I am working on i.MX 6Quad SABRE-SD with Android 9. I am facing some problem when copy the some data to system/app from USB Mass Storage, I got error, when I mount the system to write access: ...
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26 views

How is system-as-root mounted in android 9?

In android 9, system.img consist of system and ramdisk. So kernel will mount system.img directly and implement init program. Next, init will parse init.rc file and mount remaining partitions based on ...
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2answers
36 views

Pie 9.0 Low Battery Notification Not Working (Moto G7)

New Moto G7 running Android Pie 9.0 Everything else works fine. The issue I'm having is with the Low Battery Warning sounds and notifications. Simply put, I want the most annoying low battery ...
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1answer
46 views

Can we delete Android system WebView app to free up space?

I am looking to free up some space on my android device.
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0answers
12 views

Finding app address/url [duplicate]

I would like to find what the url of an app is, I could only see that, which I am not sure what it really is called, for apps that I installed on my SD card then removed the card. It looks something ...
1
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1answer
105 views

Android: how to increase system partition and decrease data partition?

A very bad situation I want to install the Lineage 16 OS on Nexus 5 Without apps it install Ok With google apps(I select pico package arm, wich is under 100 MB) not and give error system partition ...
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0answers
37 views

Fastboot Xiaomi system partition problem

I am trying to upgrade Xiaomi Mi A2 Lite to Android Pie via fastboot ROM images. It was on Oreo, initially. Had TWRP installed in boot.img because it is an A/B slots device. TWRP is officially ...
0
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0answers
23 views

In which Android system file can I remove Wi-Fi password field?

If I would root my device based on Android (v4.0.4), which system file and how can I change to remove from the graphic interface the field where we manually type a password when connecting to new Wi-...
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1answer
19 views

How to view device kernel information (verbose)?

I need to view my device kernel info, in particular the architectures. The device is not rooted, therefore uname command isn't available in local terminal, but cat /proc/version doesn't have an ...
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0answers
68 views

Android : how to remove the downloaded android update

I have a securities concern. I installed a VPN software on my android and just after (the next day) android asks me do install an update (that is already downloaded via the VPN). I don't fully trust ...
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0answers
38 views

What's the easiest way to add files to the Android system partition?

I need to add a root certificate to Android systems. I hope to achieve this by copying the appropriate file the following path: /system/etc/security/cacerts, or using a flashable zip. Due to the fact ...
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0answers
20 views

Does renaming a file then rename it back break safetynet?

Presume Safetynet passes after installing Magisk. If I rename /system/prev-app/SetupWizard/SetupWizard.apk to SetupWizard.apk.a. Then after a restart, I rename it back. Will this action break ...
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1answer
76 views

System storage is showing full even when it is not. So I can't install apk as system app

I have OnePlus 6 with latest Open Beta. It is rooted. I have done everything but I still can't install any app as a system app. I have tried Link2SD and Titanium Backup. I have tried to copy/paste ...
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0answers
23 views

What does the headphone icon in picture-in-picture suppose to do?

So you see the headphone icon in picture-in-picture, but I have not figured out what this icon is supposed to do, thus the question.
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1answer
119 views

SystemUI.apk is not in /system/app

I tried to pull SystemUI.apk on my Samsung Android Pie/OneUI and it seems like it's either in some other directory than /system/app or has been renamed. I tried to pull this through adb. Tried ...
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0answers
14 views

Running an app locally

First statement. Deffo a noob ! I am wondering if anyone can suggest a program that can create a "quick and dirty" little script. I don't really want to go down the "studio" route unless I have to as ...
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2answers
148 views

Getting signature error while installing a different version of the app

Recently I install a custom ROM named eelo https://e.foundation/. It comes with pre-installed Telegram app. After much research I was able to uninstall if from the system with the command adb shell pm ...
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0answers
38 views

Can I get the account details or logged details of an application from the data / file system directory of phone?

Can i get the account details or logged details of an application from the data file of the application in the file system. My device is rooted. For example I have two Instagram accounts saved in the ...
0
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1answer
46 views

What is the difference between NB and WB entries in mixer_gains.xml?

LineageOS for my phone has these sections with entries in the mixer_gains.xml file: <path name="gain-incall_nb-handset-mic"> <path name="gain-incall_nb-handset-mic"> <path name="gain-...
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0answers
55 views

System UI won't start after tweaking Quick Setting with System Ui Tuner

I did a stupid mistake this afternoon. I downloaded the System UI Tuner app and tweak the status bar to only show ONE quick setting tile upon first swipe down (obviously wont work but idiot me still ...
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0answers
163 views

Marshmallow: Adding system-wide custom root certificate

On Android 6 if I move my own root CA from /data/misc/user/0/cacerts-added to /system/etc/security/cacerts/ it doesn't work anymore. It is in the system list and active, but my browser says ...
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0answers
62 views

Managing /data/system/netpolicy.xml: what do these policies mean?

Seems like it wasn't clever of me to restore Data (policy/stats) with Titanium Backup. It has all that apps' unique UIDs from my previous system (actually, the same phone, but wiped and flashed) and ...
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0answers
24 views

What happens under the hood when a network request is made by an application

I'm interested in knowing what happens at the kernel level when an application makes a network request. While playing with strace I was hoping to find system calls like connect() to make a connection ...
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0answers
32 views

How do you rollback an Android system upgrade to Pie? [duplicate]

I want to revert my phone back to Android 8 Oreo after installing/upgrading to Android 9 Pie. I'm not a fan of Pie and just want to go back to the previous version Oreo, is this possible? if so, then ...
2
votes
1answer
105 views

How to delete a date and time tab in setting to prevent user from changing it?

(Please understand me about my broken English.) I am a student in South Korea. I am making a quite restricted Lenovo tablet, to make it a perfect education device. The goal is to "help" students to ...
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0answers
33 views

How to backups whole phone storage (android) [duplicate]

Is it possible to backup android phone including partition table if its possible then how to backup whole phone storage in android including all partitions, partition table, whole phone, and how to ...
0
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1answer
31 views

Where do the exact locations of the phone buttons combinations stored?

Where do the exact location of the phone button combinations like power reset while holding Volume down + Power, booting to recovery by holding Volume up + Power + Home (if there is a Home button) is ...
0
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0answers
122 views

How do I get rid of com.android.Pet.mediaproxy?

I found this on my phone on my Files after I woke up. I accidentally fell asleep and I have a housemate who likes messing with my things and decided to put something on my phone that is actually a ...
0
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0answers
52 views

I wiped everything from my phone with TWRP and my version is too old

i have a few ROMs and some backups in my computer so I tried to flash them but I always get "Error executing updater binary in zip" which I heard means my version is too old. EDIT: I tried to flash ...
1
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1answer
100 views

What position do cellular communcation (1G, 2G, 3G, 4G or other function only implemented in phone) play in Android operating system archtecture?

I am entirely new to Android, but have a little knowledge on Linux. I have view the architecture graph of android on official site: The Problem: Not all android device support cellar network. As a ...
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0answers
41 views

Where can I find the default /system/lib for Lollipop

I have a rooted Alcatel 5017 A and I wanna check the libraries on the system (I think I got hacked) can anyone show me the default content of system/lib for this phone? Thank you all! Also, I would ...
1
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1answer
173 views

Fix “android.process.acore keeps stopping” when the contacts provider can't load it's db

My phone just decided that it should spam an exception onto my screen that reopens as soon as I tap it away. A look at logcat reveals the following being thrown multiple times per second: SQLiteLog: ...
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0answers
27 views

My question is is my cell phone rooted and am I hacked

Okay what's happened is I had a Verizon contract I looked into software information and a bug report and it kept saying I was rooted I had top of the line phone and it kept freezing at it Factory ...
1
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2answers
181 views

How to get reliable download for old Android Samsung?

What is reliable? I need reliable Android, to install "from zero", cleaning all the old firmware of the old smartphone.... So, the first and main step is to download a reliable and complete set of ...
0
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0answers
37 views

Can I still update apks currently on my android device with an apk updater app if I uninstall the package installer?

If I were to find a way to disable install via ADB, install an APK updater app that auto updates apps and then uninstall the package installer, would the apk updater still be able to update apps ...
0
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1answer
332 views

Where to find information about WiFi connectivity of the device?

is there a way I can find information about my device's connectivity to WiFi network? I need information like: what network I'm connected too, what is the mac address of the router, how long have I ...
0
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0answers
114 views

How to install system trusted CA certificate on Android without rooting [duplicate]

I need to install the firewall certificate on the devices of my company. Since I can't install a system trusted certificate without rooting the device I thought of creating an Android image that comes ...
2
votes
1answer
309 views

How can there be two separate Android System under “Running services”?

My Verizon LG V20 (Android 8.0) appears to be running two Android Systems at the same time, but, I'm pretty sure that isn't possible. Am I wrong on this or am I seeing things? Also, the timing ...
1
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1answer
1k views

Does Android provide auto-switching of network mode when mobile data is toggled?

Whenever I want to turn on the mobile data, I have to go to "Preferred network type" menu and Switch to 3G/4G/Prefer LTE manually which requires many steps. So does Android OS provide auto switching ...
0
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4answers
203 views

how to use two diferent numbers in the same phone via whatsapp?

My phone just went broken last night, and I have another but I don't want to change the sim card, so I'm wondering if its possible to run 2 numbers on the same phone. I have heard there is a chance ...
1
vote
1answer
53 views

Why did my phone reboot after copying an so file to the system/lib folder?

I ran the following command and the phone automatically rebooted after copying. Why? Was it because the so file was in use? $ adb shell 'mount -o rw,remount /system && cp /sdcard/libfoo.so /...
1
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0answers
83 views

Will deleting all system apps and APKs from Android prevent it from starting up?

The motivations of profit driven corporations like Google, Samsung, Microsoft alongside the motivations of the secret services like GCHQ and the NSA are at odds with my desire to use the expensive ...
0
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2answers
332 views

Can airplane mode be maintained during a system update?

When traveling internationally, it's often a good idea to put the phone in Airplane Mode before departure, activate wi-fi as needed, and leave the phone in Airplane Mode until returning to one's home ...
3
votes
1answer
650 views

Export VPN configurations from Android

I would like to export all my VPN configurations stored in my smartphone to my pc. I use three VPN apps (VPN Master, USA VPN and Bettermet), in your opinion have I to find by myself all certificates ...
0
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1answer
77 views

How to store system app's settings on /system partition?

I have a system app, and I need that both the application itself and its settings shall be in /system partition. I can change the application to be in system by moving from /data/app to /system/app. ...
0
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1answer
22 views

I have 2 s7 from market but systems are messed up

Can someone link me where I can download the Android latest system os file to download to SD card so I can reinstall phone os system from phone update boot screen thanks I got 2 x s7 but there got ...
0
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0answers
30 views

Upgrade the OS from 5.x to 6.x [duplicate]

How can I upgrade from 5.1.1 to 6.x in order to utilize adoptable storage?
0
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0answers
870 views

How to stop my phone from annoying me with software updates?

I'm getting constant notifications that a new software-update is available for my phone. It's a motorola on android 7 and i do not want the software-update. I was getting notifications all day ...