I'm currently on AOSP V4 which if flashed from MIUI 7.1.8.0 (flashed with unofficial way to unlock bootloader). I made the TWRP backup of 7.1.8.0 before flashing aosp.Today i tried restoring it back but twrp throws error-255 for system partition and didn't moved further. So TWRP is quite risky as there is no guarantee if it has made the backup right way or not. In my case it didn't and i am f**d.So came across this thread.Now after 2 months , wanted to try MIUI againSo can i just flash it using TWRP with wipe over Aosp without any other special steps ?and how do i make sure TWRP has made the Backup correctly each and every time ?as for 7.1.8.0 i used compression and it made the corrupt backup but made correct backup for aosp v4 itself ?