I am stuck in a weird situation where I have two Android 10 phones from Samsung. I have rooted the stock recovery of both device as instructions given here. The problem is when I change something via recovery like create a new /system/etc/init/custom.rc file then on One device it persist on /system after reboot but on another it doesn't. The changes does persist when I reboot to recovery back.
I want to understand which layer of Android applied this feature:
- Stock recovery
- or another
Any suggestion? and how to fix it?