A. Prepare boot image
1. Download magisk manager apk
2. Download the exact firmware (including upgrade date) for your device from https://samf...
What is GSI?
GSI stands for Generic System Image and will allow you to install an alternative ROM on your Galaxy A20?
No longer will we be restricted to the Samsung ROM.
These ones worked for me. If they don't work for you, go to the list of all...
The following procedures worked for me but I can't guarantee they will work for everyone.
Use them at your own risk
Save Your Data
Copy files to SD card or to usb or to computer
Use sms backup and restore app to save texts and phon...
Before you Start
1. Make sure your phone is rooted
For A20: https://forum.xda-developers.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872
For A30: https://forum.xda-developers.com/galaxy-a30/how-to/root-galaxy-a30-magisk-cana...