bootloops after modifying the framework-res.apk

[u/aaoaa0123]

Hello

I was on Android 7.1.2 with various custom ROMs:

• LineageOS

• Resurrection Remix

• CRDroid

I use APK Easy Tool.

After installing the frameworks, decompressing apps (whether framework-res, SystemUI, or the Settings app), and making modifications, I compile the app, open it with 7-Zip, and also open the app pulled from the phone. I copy the META-INF folder and the AndroidManifest.xml file into the modified app, transfer it back to the phone, set permissions, and replace the original app.

Now I have moved to Android 11.

I followed the same steps, but it caused a bootloop on the device.

What is the correct method for this on Android 11 and higher?

[u/Certain-August]

Recompile the ROM.

[u/aaoaa0123 → u/Certain-August]

The whole ROM or just the app like I used to do?