Database Info

[HOW TO] Open CGs

Hi all :
I try open all CGs for see the files, but i only know to open CG39 and some more..
sudo mount -o loop CG.39.smg CG39
But the others ¿¿
Some one have the answer ¿?¿?¿?

There is a Perl script which can unpack boot and recovery (CG35 & CG47) in this thread: http://forum.xda-developers.com/showthread.php?t=443994

Filipitripi said:
Hi all :
I try open all CGs for see the files, but i only know to open CG39 and some more..
sudo mount -o loop CG.39.smg CG39
But the others ¿¿
Some one have the answer ¿?¿?¿?
Click to expand...
Click to collapse
CG64.smg & CG65.smg: partition tables that you can open using fdisk/sfdisk
CG33.smg is a CDROM ISO file!
iirc one or two of them are the splash image (not 100% sure now)

Filipitripi said:
Hi all :
I try open all CGs for see the files, but i only know to open CG39 and some more..
sudo mount -o loop CG.39.smg CG39
But the others ¿¿
Some one have the answer ¿?¿?¿?
Click to expand...
Click to collapse
how to repack cg39.smg
if you have any details on windows 7 how to open repack do send me.

rachit2588 said:
how to repack cg39.smg
if you have any details on windows 7 how to open repack do send me.
Click to expand...
Click to collapse
http://sourceforge.net/projects/ext... 2.2 (Latest)/ext2explore-2.2.71.zip/download
It will allow you opening ext3 images inside Windows

^very good idea

danimagrin said:
http://sourceforge.net/projects/ext... 2.2 (Latest)/ext2explore-2.2.71.zip/download
It will allow you opening ext3 images inside Windows
Click to expand...
Click to collapse
so now i can see files on cg39.smg using ext2reader but the thing is now how to get system image from cg39.smg to system.img ??

rachit2588 said:
so now i can see files on cg39.smg using ext2reader but the thing is now how to get system image from cg39.smg to system.img ??
Click to expand...
Click to collapse
System.img to be restored with Nandroid? If yes you have to extract all files with ext2reader then use mkyaffs2image to build system.img.

danimagrin said:
System.img to be restored with Nandroid? If yes you have to extract all files with ext2reader then use mkyaffs2image to build system.img.
Click to expand...
Click to collapse
with mkyaffs2image its jus showing me a cmd windows for some less thn 1 sec and its jus goes away...please upload the version you are using...also let me know if it needs any prerequisite software to be installed.

It's because mkyaffs2image is a command line app, just like in the DOS days... To use it you should open a cmd window (type cmd at Windows menu and press enter), go to the directory right before the one you extracted files (you use cd "dirname" to enter in a directory and "cd .." to leave it. So when you are in the directory right before the one in which you've extracted files type "mkyaffs2image CG39extracteddir system.img"

danimagrin said:
It's because mkyaffs2image is a command line app, just like in the DOS days... To use it you should open a cmd window (type cmd at Windows menu and press enter), go to the directory right before the one you extracted files (you use cd "dirname" to enter in a directory and "cd .." to leave it. So when you are in the directory right before the one in which you've extracted files type "mkyaffs2image CG39extracteddir system.img"
Click to expand...
Click to collapse
oh , ok.. its working..thanks

danimagrin said:
It's because mkyaffs2image is a command line app, just like in the DOS days... To use it you should open a cmd window (type cmd at Windows menu and press enter), go to the directory right before the one you extracted files (you use cd "dirname" to enter in a directory and "cd .." to leave it. So when you are in the directory right before the one in which you've extracted files type "mkyaffs2image CG39extracteddir system.img"
Click to expand...
Click to collapse
ok last doubt...after creating system.img can it be restored via custom recovery..??
how to add md5 check sums for that so that custom recovery can identify as proper nandorid..!!??

rachit2588 said:
oh , ok.. its working..thanks
Click to expand...
Click to collapse
You welcome!
Sure you can use it with nandroid, you must download md5sum.exe, place it together with mkyaffs2image, after you used mkyaffs2image then type "md5sum system.img" and it will generate checksum. Create a file called "nandroid.md5" and paste what md5sum returned. You can open a nandroid.md5 file of another backup and you'll understand better how it's done..

excellent..i got it

@danimagrin help me how to add root files if our cg39 image is unrooted..??
ie how to manually add root files from some rooted cg39 image to some non rooted original image..which files and folders are required to add/replace..?? ne thoughts..

rachit2588 said:
@danimagrin help me how to add root files if our cg39 image is unrooted..??
ie how to manually add root files from some rooted cg39 image to some non rooted original image..which files and folders are required to add/replace..?? ne thoughts..
Click to expand...
Click to collapse
I know how to do it on Linux, because you've to run chmod and chown to set su and Superuser.apk permissions. I'll see if it's possible to do it inside Windows and I'll answer you asap.
Where did you get mkyaffs2image for Windows? Are you running it with -f flag or not? Have you already made an image and restored it and did it really work? I'm afraid if will not work because of the same problem above...

danimagrin said:
I know how to do it on Linux, because you've to run chmod and chown to set su and Superuser.apk permissions. I'll see if it's possible to do it inside Windows and I'll answer you asap.
Where did you get mkyaffs2image for Windows? Are you running it with -f flag or not? Have you already made an image and restored it and did it really work? I'm afraid if will not work because of the same problem above...
Click to expand...
Click to collapse
yes i have made an system.img with md5 nandroid check sum...but still not restored with CWM Recovery...yeah mkyaffs2image works on windows...find out in the attached IMG depacker

rachit2588 said:
yes i have made an system.img with md5 nandroid check sum...but still not restored with CWM Recovery...yeah mkyaffs2image works on windows...find out in the attached IMG depacker
Click to expand...
Click to collapse
I'll test it as soon as I get home and then I tell you!

V20B .bin file :)

There you go
http://www.lgmobiles.com/gsm/download/P920 V20B (Gingerbread Version).zip
To root the bin file (instructions based on the one here)
Requirements: WinHex, a Linux distro (VMs work fine), drivers and flasher.
Instructions
1. Extract and open LGP920AT-00-V20b-ESA-XXX-JAN-10-2012+0_AP.bin in WinHex or any other hex editor.
2. Use WinHex to dump the content from offset B80000 (hexadecimal) to the end (select B80000 as start block and 22ABFFFF as end block and copy it to a new file), and save the dump as system.img.
3. Copy the .img to your Linux distro. Place it in the desktop. Now open terminal, cd to Desktop and enter the following commands one by one:
sudo mkdir temp
sudo mount -o loop system.img temp
Click to expand...
Click to collapse
What this does is mount the img into the temp folder. However, the files are read only. To copy su and superuser.apk, download both file, place them in the Desktop and enter the following commands:
sudo cp superuser.apk temp/app
sudo cp su temp/bin
Click to expand...
Click to collapse
Now, you have to set permissions for su and superuser.apk.
cd temp/app
sudo chmod 0644 superuser.apk
cd
cd Desktop/temp/bin
sudo chmod 6755 su
Click to expand...
Click to collapse
To save the changes, enter this:
sudo umount temp
Click to expand...
Click to collapse
Now, copy image.img back to Windows or whichever environment you prefer.
4. Copy the contents of the img file in WinHex. Go back to the bin file in WinHex and remove any data from offset B80000 onwards. You should be left with offsets 0 to B7FFFF. Right click block B7FFFF, select clipboard data > paste and accept all the prompts. You can now save the .bin file.
5. Now, it's time to flash the .bin. Extract the drivers somewhere and install "LGUnitedMobileDriver_S497CA20_WHQL_ML_Ver_1.0 .exe" and "LGUnitedMobileDriver_S497MA20_WHQL_ML_Ver_1.0.exe". Then, extract the flasher to another location.
6. With the .bin and .fls (found in the zip file containing the .bin as well) in hand, turn your phone off and remove both SD and SIM cards.
MAKE A BACKUP BEFORE PROCEEDING. THIS PROCEDURE WIPES SYSTEM AND APPS. DATA SUCH AS MUSIC AND IMAGES WILL REMAIN INTACT.
Click to expand...
Click to collapse
7. Hold volume up button while inserting the usb cable. When your computer detects the phone, let go of the button.
8. Once the driver installs, run B_SmartFlashTool_Extern.exe, go to the ROM copy D/L tab
9. Select the .bin file under CP bin and the .fls file under AP .bin.
10. Click start. Don't touch anything.
11. Once it's done, close the flasher, unplug your phone and insert the SIM and SD cards and turn it on.
12. Done
Zip file contains both .fls and .bin files.
So it seems roms based on v20B might be in the works
EDIT: Not going to upload, has been superseded by v20E and the Megatron exploit.

Hello! Please laid out links to the program.

http://file.karelia.ru/3jw96r/
LGP920AT-00-V20e (no patched)

Please patch file!
Sent from my LG-P920 using xda premium

he's uploading the v20b bin as we speak, also someone might need to make a thread on "patched firmware" if people are finding more .bin files

I'm 30% through the second zip file, Mediafire only allows maximum 200MB per file so I had to split up the .bin. It should be up in about an hours' time.

SnegovikRZN said:
http://file.karelia.ru/3jw96r/
LGP920AT-00-V20e (no patched)
Click to expand...
Click to collapse
Can somebody patch this bin. I think this is newest ROM 18.01.2012.

dr_jerremy said:
Can somebody patch this bin. I think this is newest ROM 18.01.2012.
Click to expand...
Click to collapse
I'm downloading it now, download speeds are really slow. I'll take a look once it finishes downloading.

pandaball said:
I'm downloading it now, download speeds are really slow. I'll take a look once it finishes downloading.
Click to expand...
Click to collapse
I'm almost done with dowloading,but i dont know how to patch :S..... I will try
EDIT: Bin. V20E 18.01.2012

Follow the updated instructions, they should be concise enough to follow.
In other news, I realised I forgot to set permissions for superuser.apk and su. So, I have to reupload everything due to my mistake. Sorry guys, I can only upload everything tomorrow as it's getting late
@SnegovikRZN If you could create patched ROMs for P920 as you did with the P970 that would be great

pandaball said:
Follow the updated instructions, they should be concise enough to follow.
In other news, I realised I forgot to set permissions for superuser.apk and su. So, I have to reupload everything due to my mistake. Sorry guys, I can only upload everything tomorrow as it's getting late
@SnegovikRZN If you could create patched ROMs for P920 as you did with the P970 that would be great
Click to expand...
Click to collapse
Can I say I'm first?

pandaball said:
Can I say I'm first?
Click to expand...
Click to collapse
i'll bring my thumbdrive over jk

Я не могу создать прошивку для p920, так как там немножко другая структура...

Ohh the ANDROID! string is missing... ok, no problem

in the 20e the entry 22ABFFFF is missing..

Maybe for V20E:
2249FFF0

I can't flash patched rom with Lg flash tool..
Oh I figured out what's the problem

Seem V20B having more options to root it.

hondymondy said:
Seem V20B having more options to root it.
Click to expand...
Click to collapse
Not really, most new roms would be rebased on v20E so I would recommend those

[Q]How can I extra the system.img file

Can dev teach me ..
How can I extra the system.img file under windows 7 OS.

dickluo said:
Can dev teach me ..
How can I extra the system.img file under windows 7 OS.
Click to expand...
Click to collapse
You will need the android SDK and adb.
You can either do this through the terminal app on the phone or by using adb...
With adb:
From windows command line, and the phone connected via usb.
adb shell
su
cat /dev/block/system > /sdcard/system.img
If you use the terminal, you run the same commands as above, except the adb command.
To get the file on your hard drive, run this from the windows command prompt:
adb pull /sdcard/system.img .
Jim
Sent from my MB865 using xda premium

EDIT- lol, Jim and I had two different perspectives on your question . Are you asking how to create a system.img based off of your current /system, or are you asking how to extract an .img you already have and set up a working directory for ROM building?
Under Win7? Good luck with that. The system.img contains a filesystem that Windows doesn't natively support. You can use an app like Ext2Read to open and extract .img's, but if you do that all the symlinking will get messed up because Windows filesystems don't support symlinks. Also, Ext2Read might freeze or not fully extract the image just because of compatibility issues.
I highly recommend you use VirtualBox or set up a dual-boot with a Linux OS like Ubuntu. From there, you can install the ROM Kitchen which makes building ROMs a lot easier. It will let you set up a working directory based off of a system .img, and it detects all symlinks and adds them to the updater-script.

cogeary said:
EDIT- lol, Jim and I had two different perspectives on your question . Are you asking how to create a system.img based off of your current /system, or are you asking how to extract an .img you already have and set up a working directory for ROM building?
Under Win7? Good luck with that. The system.img contains a filesystem that Windows doesn't natively support. You can use an app like Ext2Read to open and extract .img's, but if you do that all the symlinking will get messed up because Windows filesystems don't support symlinks. Also, Ext2Read might freeze or not fully extract the image just because of compatibility issues.
I highly recommend you use VirtualBox or set up a dual-boot with a Linux OS like Ubuntu. From there, you can install the ROM Kitchen which makes building ROMs a lot easier. It will let you set up a working directory based off of a system .img, and it detects all symlinks and adds them to the updater-script.
Click to expand...
Click to collapse
Thanks cogeary .
I need the ext2read to explorer the *.img file and it can extra anyone file from *.img to my disk.
And can I use the *.apk from other *.img to create/use on my phone/system.

dickluo said:
Thanks cogeary .
I need the ext2read to explorer the *.img file and it can extra anyone file from *.img to my disk.
And can I use the *.apk from other *.img to create/use on my phone/system.
Click to expand...
Click to collapse
Sometimes. You can probably use apps like the alarm clock or browser that come from a different firmware, but don't try using framework files (like framework-res, systemui, etc) and important apps (like the dialer or phone) from different firmwares.

Root+Custom ROM Onda V10 Pro

Hi everybody,
i try to find tutorial to root my onda v10 pro tablet and then install a custom rom on it but i found nothing. Did someone change the official ROM, if yes can i have some help?
Thanks a lot.

locss said:
Hi everybody,
i try to find tutorial to root my onda v10 pro tablet and then install a custom rom on it but i found nothing. Did someone change the official ROM, if yes can i have some help?
Thanks a lot.
Click to expand...
Click to collapse
I also need to root in my v10 pro wave, and find custom rom, have if someone helps us, thanks

impossible to root or unlock
berti hispano said:
I also need to root in my v10 pro wave, and find custom rom, have if someone helps us, thanks
Click to expand...
Click to collapse
Hello, i also need to root this tablet, i want to enable remote control because i will give it to my grand mother. Any help on how to unlock bootloader or root the tablet will be apreciate ! THank you !
I found this thread : 4pda.ru / forum / index.php?showtopic=819301&st=80#entry64752617
They say to do the following command but i have "permission denied on all commands" !
Process:
- Unpack Magisk-v13.6 (1360) .zip
- In the unpacked folder, load the file boot-verified.img from the firmware and rename it to boot.img . And also rename the arm64 folder to magisk_inject
- Once again we make sure that the following folders and files are in the prepared folder: META-INF, boot.img, common, magisk_inject .
- Open the terminal from this folder (for win7 holding the shift, call the context menu and select Open command window here) and enter 5 lines of commands, one at a time (I used to copy-paste):
adb shell "rm -rf / data / local / tmp / *"
adb push META-INF / com / google / android / update-binary common magisk_inject boot.img / data / local / tmp
adb shell "cd / data / local / tmp / magisk_inject; mv ../common/*.; chmod 755 *; sh ../update-binary indep boot_patch.sh ../boot.img; mv ../bin/busybox busybox "
adb pull / data / local /tmp/magisk_inject/new-boot.img
adb shell "cd / data / local / tmp; rm -rf * .img magisk_inject / *. img update-binary bin common"
THank You !

ekirock said:
Hello, i also need to root this tablet, i want to enable remote control because i will give it to my grand mother. Any help on how to unlock bootloader or root the tablet will be apreciate ! THank you !
I found this thread : 4pda.ru / forum / index.php?showtopic=819301&st=80#entry64752617
They say to do the following command but i have "permission denied on all commands" !
Process:
- Unpack Magisk-v13.6 (1360) .zip
- In the unpacked folder, load the file boot-verified.img from the firmware and rename it to boot.img . And also rename the arm64 folder to magisk_inject
- Once again we make sure that the following folders and files are in the prepared folder: META-INF, boot.img, common, magisk_inject .
- Open the terminal from this folder (for win7 holding the shift, call the context menu and select Open command window here) and enter 5 lines of commands, one at a time (I used to copy-paste):
adb shell "rm -rf / data / local / tmp / *"
adb push META-INF / com / google / android / update-binary common magisk_inject boot.img / data / local / tmp
adb shell "cd / data / local / tmp / magisk_inject; mv ../common/*.; chmod 755 *; sh ../update-binary indep boot_patch.sh ../boot.img; mv ../bin/busybox busybox "
adb pull / data / local /tmp/magisk_inject/new-boot.img
adb shell "cd / data / local / tmp; rm -rf * .img magisk_inject / *. img update-binary bin common"
THank You !
Click to expand...
Click to collapse
Thank you for your post, but where can we find some custom rom for this tablet?
Thank you.

android 6.0
reddit.com/r/androidtablets/comments/6v4szs/onda_v10_pro_play_store_doesnt_work_out_of_the/
haven't tried yet but attempting tonight

Thanks Gregory, but is it possible to install a custom rom based on android 7?

system.img is corrupt for all . Has anyone successfully been able to flash this firmware to their devices so far??
Edit: my bad, cannot use 7 zip to extract, use ext4 extractor instead

Success!
Hi there
I tried dozen of methods to root this device and always failed.
I was ready to give up when I decided to give a last chance to me.
I have tried the Hovatek's brilliant fastboot way with magisk manager but always stucked on the critical last point.
OK, follow these intructions
#extrack Magisk 13 on a PC folder
# copy the files in common folder on sdcard in your device
#copy the original boot.IMG of your firmware on the sdcard
#open your device install and run Magisk manager app
#under this app install Magisk and chose .img
#go to sdcard and select your boot.img for patching
#look at the terminal if the job is done
#find the patched image in the Magisk folder at the main storage
#flash it with sp flash tool
#enjoy and forgive me for my basic English
PS. I'm looking for twrp or cwm for this device.
Please inform me if you know something about.

cosbrav said:
Hi there
I tried dozen of methods to root this device and always failed.
I was ready to give up when I decided to give a last chance to me.
I have tried the Hovatek's brilliant fastboot way with magisk manager but always stucked on the critical last point.
OK, follow these intructions
#extrack Magisk 13 on a PC folder
# copy the files in common folder on sdcard in your device
#copy the original boot.IMG of your firmware on the sdcard
#open your device install and run Magisk manager app
#under this app install Magisk and chose .img
#go to sdcard and select your boot.img for patching
#look at the terminal if the job is done
#find the patched image in the Magisk folder at the main storage
#flash it with sp flash tool
#enjoy and forgive me for my basic English
PS. I'm looking for twrp or cwm for this device.
Please inform me if you know something about.
Click to expand...
Click to collapse
Just did it. it works, though it was horrible. magisk 13 is too old and I could not find how to patch the boot.img option.
so I managed to do with the common files from 18.1 and the patching complete.
then I re-flashed everything and unfortunately it reset the tablet, but worked and I'm rooted now.
As you, waiting to the confirmation twrp exist, and if so what version.
cheers

cosbrav said:
Success!
Hi there
I tried dozen of methods to root this device and always failed.
I was ready to give up when I decided to give a last chance to me.
I have tried the Hovatek's brilliant fastboot way with magisk manager but always stucked on the critical last point.
OK, follow these intructions
#extrack Magisk 13 on a PC folder
# copy the files in common folder on sdcard in your device
#copy the original boot.IMG of your firmware on the sdcard
#open your device install and run Magisk manager app
#under this app install Magisk and chose .img
#go to sdcard and select your boot.img for patching
#look at the terminal if the job is done
#find the patched image in the Magisk folder at the main storage
#flash it with sp flash tool
#enjoy and forgive me for my basic English
PS. I'm looking for twrp or cwm for this device.
Please inform me if you know something about.
Click to expand...
Click to collapse
Followed the same but with latest Magisk and SP flash tools. It works and now my Onda V10 pro is rooted.
If you guys need latest google play services to be running on Onda V10 Pro. Please use LuckyPatcher after installing Magisk to install latest google play services(arm64-v8a).
Install LuckyPatcher and provide super user access.
1. Uninstall existing google play services using LuckyPatcher.
2. Download arm64-v8a compatible latest google play services and install as a system app using LuckyPatcher. After that it will ask for reboot and after rebooting it will show android apps updating loader for few mins.
3. Then you can use any apps that require latest google play services. For me youtube was not working before but now its working.

What is the right way to turn an app into a system app under Android Oreo and above ?

I have tried several methods to turn an app into a system app but even if in some case I managed to install the app inside /system/priv-app the app was not running as a system app as I could figure out by checking running the command "adb shell ps".
So please could someone tell me if I missed something or if there is some limitation link to Lineage or may be Magisk or TWRP to have an app runing as a system app ?
I have tried with Lineage 15.1 (Oreo) and magisk 21.2 the phone is a Samsung S5 using TWRP 3.5.0_9-0 as system Recovery
First method was to
1 making a copy of the app folder to the internal storage
2 renaming that copied Folder with a short name without dot (like renaming com.example.myapp folder to Myapp Folder)
3 renaming the apk from base.apk to Myapp.apk
4 uninstalling the app
5 under TWRP recovery mode mount the system partiton and copying the Myapp folder to system/priv-app directory
6 chmod 755 Myapp Folder
7 chmod 644 Myapp.apk
8 wipe Dalvilk Cache and rebooting
Steps 2 and 3 might be useless it was just because I noticed the Priv-app directory used these naming Scheme for apps inside this folder
I tried this method also under Lineage 17.1 and Magisk 21.4 but then the phone was not able to reboot until I delete the newly created folder inside Priv-app
I also tried another method using Magisk Systemize (Terminal) module but the result was the same (the app was running but not as a system app)
As I have never seen that it was mentionned in any posted method explaning how to turn an app into a system app, the installed app was not signed with the platform key and the manifest was not including android:sharedUserId="android.uid.system"
Thanks in advance to those that will try to help.

Have you tried copying it to /system/app ?

Droid_76 said:
Have you tried copying it to /system/app ?
Click to expand...
Click to collapse
Yes and unfortunately the result was exactly the same

If DM-Verity & AVB are enabled these locks must get disabled before trying to operate on /system partition

jwoegerbauer said:
If DM-Verity & AVB are enabled these locks must get disabled before trying to operate on /system partition
Click to expand...
Click to collapse
Thanks but I don't think I have these enabled as I can mount write on the system partition, how do you check whether they are enabled or not ?

Newer Android versions have these locks by default enabled - they are set within file vbmeta.img : If enabled then phone's bootloader always loads device's Stock ROM, not any modded ROM where it doesn't matter whether partitions temporarily got mounted - by you - as RW or not.
Long story short: You've to unlock phone's bootloader, if not done yet, then disable the locks
Example code:
Code:
adb devices
adb reboot fastboot
fastboot devices
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img

I wonder what's the difference between a system app and a common app.

James_Watson said:
I wonder what's the difference between a system app and a common app.
Click to expand...
Click to collapse
Apps developed as system app / system privileged app can access System APIs whereas common user app cannot.
Simply installing a common user app as system app / system privleged app makes NO SENSE at all.

jwoegerbauer said:
Newer Android versions have these locks by default enabled - they are set within file vbmeta.img : If enabled then phone's bootloader always loads device's Stock ROM, not any modded ROM where it doesn't matter whether partitions temporarily got mounted - by you - as RW or not.
Long story short: You've to unlock phone's bootloader, if not done yet, then disable the locks
Example code:
Code:
adb devices
adb reboot fastboot
fastboot devices
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
Click to expand...
Click to collapse
Thanks but correct me if I'm wrong I could not have installed LineageOS TWRP and Magisk if Dm-verify was active so I don't think it is the issue here. I'm still looking forward what is preventing the app to run as a system app when it is installed in system/priv-app. The app is then running but as a standard app.

Lisadev said:
I'm still looking forward what is preventing the app to run as a system app when it is installed in system/priv-app. The app is then running but as a standard app.
Click to expand...
Click to collapse
Must admit I don't understand your problem: an app either runs or runs not where it doesn't matter where it's located. That's also true if an app has root rights granted.
IMO only thing of interest is what Android app's permissions are granted. A permission SYSTEM / ALLOW_ALL what I think you expect to be there doesn't exist. See also here:
https://developer.android.com/reference/android/Manifest.permission#public-constructors_1

I ran into problems with a couple of methods as well. People said they would work, but they were no good. But do you know what has worked for me, reliably and consistently?
App Systemizer.
Just search for App Systemizer through Magisk. Download and install, then reboot. Now, open up a terminal with superuser privileges. Yeah, gotta use a terminal for this one. Open terminal and enter the command su (in case you didn't know how to get superuser privileges through a terminal). Once you've done that, enter the command systemize and then follow the prompts.
I had problems with other methods. This was the one that worked. Give it a try.

Start command prompt on your computer to navigate where the APK file is located. Enable USB debugging on your device and connect it to the computer via USB cable. Your phone will automatically rebooted and your app will now be saved as a system app.

jwoegerbauer said:
Must admit I don't understand your problem: an app either runs or runs not where it doesn't matter where it's located. That's also true if an app has root rights granted.
IMO only thing of interest is what Android app's permissions are granted. A permission SYSTEM / ALLOW_ALL what I think you expect to be there doesn't exist. See also here:
https://developer.android.com/reference/android/Manifest.permission#public-constructors_1
Click to expand...
Click to collapse
Fore instance there is some permissions like REBOOT that require a system app you will not be able to reboot through PowerManager otherwise even if I know you can rebbot by other means on a rooted phone using some su command.

FailSafeNow said:
I ran into problems with a couple of methods as well. People said they would work, but they were no good. But do you know what has worked for me, reliably and consistently?
App Systemizer.
Just search for App Systemizer through Magisk. Download and install, then reboot. Now, open up a terminal with superuser privileges. Yeah, gotta use a terminal for this one. Open terminal and enter the command su (in case you didn't know how to get superuser privileges through a terminal). Once you've done that, enter the command systemize and then follow the prompts.
I had problems with other methods. This was the one that worked. Give it a try.
Click to expand...
Click to collapse
Yes thanks but if you read my first post you will see that I have tried Systemizer and it works in the sense that the app in installed inside system/priv-app folder and is able to run but it does not run as a system app

nihitthakkar said:
Start command prompt on your computer to navigate where the APK file is located. Enable USB debugging on your device and connect it to the computer via USB cable. Your phone will automatically rebooted and your app will now be saved as a system app.
Click to expand...
Click to collapse
I don't get it, you probable forgot to post something in your message

Lisadev said:
Yes thanks but if you read my first post you will see that I have tried Systemizer and it works in the sense that the app in installed inside system/priv-app folder and is able to run but it does not run as a system app
Click to expand...
Click to collapse
It doesn't? How can you tell? Maybe I've been missing something all this time. Maybe I only think App Systemizer works.

Lisadev said:
Não entendi, provavelmente você se esqueceu de postar algo em sua mensagem
Click to expand...
Click to collapse
Hello Friend! This question is a mystery to me. A while ago I created a thread explaining how to turn the Cerberus app into a system app and still survive a factory reset. I can guarantee you that my method worked until about 4 months ago.
This is the thread:
[GUIDE] [CERBERUS] [MAGISK] How to install Cerberus as System app.
Hello friends, I bring good news. Yes! It is possible to install Cerberus as a system app. (Even if it's rooted with Magisk) Yes, Cerberus will survive a factory reset. And your device will be traceable after a factory reset. Obviously the...
forum.xda-developers.com
For some reason now I also can't make an apk stay in Priv-app after reboot.
Even after I successfully flash vbmeta.img as described in the link below, I can't get it to work.
How to disable dm-verity or Android Verified Boot (AVB)
This is a quick guide showing how to disable dm_verity or Android Verified Boot (AVB). Disabling dm-verity / AVB is only important if you intend to flash custom images such as patched boot, custom rec
forum.hovatek.com
The question that everybody wants to hear. Did any methods work for you?

At the time of posting this (9th oct, 2021), this method works in my Android 10 (dunno 11, but most prob.)
Used Magisk root
1) First step, make /system writable (google made it read-only) by applying instruction from this thread - https://forum.xda-developers.com/t/script-android-10-universal-mount-system-read-write-r-w.4247311/
This will make sure that folders moved into /system/app or /system/priv-app are permanent across reboots.
2) Install Lucky Patcher (search google to download)
3) Go to Magisk manager and install Lucky Patcher Module for moving apps to system.
4) Normally install the app you are aiming for. Grant it all necessary permissions by going to apps settings. (don't skip this particular step. Skipping it can make permissions not able to grant later on)
5) Go to Lucky Patcher and select the app, select tools option and then select move to /system/priv-app. Tick the use Magisk module checkbox
( No, not done yet. Remember, module only mounts the app, not truly move it to /system/priv-app )
6) Turn off the Lucky Patcher Module in Magisk and reboot. You will notice app has disappeared from system (expected behaviour)(don't skip this step)
7) Open a terminal app.
Type-
su
mount -o remount,rw /
After success (may need to reboot),
open a root file manager, go to folder /data/adb/modules/luckypatcher_apps/system
Here, you would find the real apk folder for /system/priv-app as well as the permission configuration for /system/etc/permissions
Copy both folders to respective /system directories.
(we use Lucky Patcher here since it generates correct files with the right permissions, but of course, App Systemizer may also be used, but the steps change and I don't use it, so continue)
8) Go to /data/data folder and delete the app data folder for the app that was moved to /system/priv-app (prevents bugs if any)
9) Reboot phone. Now the app you wanted is fully system privileged with it actually existing in /system/priv-app (can check with TWRP's file manager).
There is no modules like App Systemizer or Lucky Patcher module mounting it. Done.
10) As an aside, just delete the /data/adb/modules/luckypatcher_apps/system folder. Like this, no problem will arise even if you enable this module again for whatever reason.
That's it, all done. Survival across reboots is already a sure thing. Now try to Factory Reset if you want to test if it survives across resets.
*Note - Of course, just make a Nandroid and internal SD backup in case.
Who doesn't want a "Save Game" option in life?

System App is not easily uninstalled by user, so it is a type of must have app as a android OS for a specific vendor(HTC, MOTO, Samsung).
Now how we can make an app as a system App.
Have source code
Have .apk Only
Step 1 Create a folder inside packages/apps/
First create a folder for your app ( Let say MyTestApp) inside packages/apps/ of your android AOSP downloaded source code.
Then create a Android.mk file inside the folder(MyTestApp).
Step 2 open Android.mk file and add folowing code Snippet and save this mk file.
Step 3 put your app name in build/target/product/ folder
open core.mk file from build/target/product/ folder and add your app name(MyTestApp) in
PRODUCT_PACKAGES tag at the bottom MyTestApp.
Now step by step procedure for .apk file
Step 1 will be same like above
only change is that in place of src, res folder just put your .apk file.
step 2 open Android.mk file and add folowing code Snippet.
Step 3 will be same as above mention for Android source code (a)
This is all about how to make an android app as a system App.

Jeffrey A. Hancock said:
System App is not easily uninstalled by user, so it is a type of must have app as a android OS for a specific vendor(HTC, MOTO, Samsung).
Now how we can make an app as a system App.
Have source code
Have .apk Only
Step 1 Create a folder inside packages/apps/
First create a folder for your app ( Let say MyTestApp) inside packages/apps/ of your android AOSP downloaded source code.
Then create a Android.mk file inside the folder(MyTestApp).
Step 2 open Android.mk file and add folowing code Snippet and save this mk file.
Step 3 put your app name in build/target/product/ folder
open core.mk file from build/target/product/ folder and add your app name(MyTestApp) in
PRODUCT_PACKAGES tag at the bottom MyTestApp.
Now step by step procedure for .apk file
Step 1 will be same like above
only change is that in place of src, res folder just put your .apk file.
step 2 open Android.mk file and add folowing code Snippet.
Step 3 will be same as above mention for Android source code (a)
This is all about how to make an android app as a system App.
Click to expand...
Click to collapse
This means to compile the ROM yourself?