You have effectively given the phone amnesia.
: If you plan to move away from MIUI after fixing the partitions, the LineageOS Download Page provides official builds for "earth".
**Earth-N ** addition :
Redmi 12 NV data recovery after system destruction - Facebook
Because these files are unique to every single handset, flashing a generic firmware often doesn't restore them if they are lost or corrupted. How to Fix "NvData Corrupted" on Poco C55 / Redmi 12C Poco c55 or Redmi-12c-earth- NvData NvRam File ...
Before flashing custom ROMs (like LineageOS or PixelOS ), always back up your unique partitions:
Service technicians often use specialized software to rebuild these partitions: You have effectively given the phone amnesia
Caution : Erasing these will remove your IMEI; you must have a backup or a way to restore it later. :
