I had a lot of devices and never had problems like on MI 9T. I'm now afraid to do updates. Every update i have to format storage and do a clean install because every time there is a problem with TWRP.
The same thing happened to me on MI 9T. After update TWRP doesn't ask for PIN, no decryption and now i can't flash anything else, all my files are letters and numbers. What can i do? THX
This tool lets you select what to uninstall ...and if you did something wrong it lets you roll back what you uninstalled. I use it and never had any problem.
Dirty flash over 9.9.26 , boots ok but when i flash Magisk it wont boot anymore, it gets stuck at booting screen. So no root on MI 9T. Tried Magisk 19.4 and Magisk 20.