This happens when the signature inside nvdata does not match the system partition. To fix this, you must unlock the bootloader, format the nvdata partition, and write a matching clean NV dump file.
Redmi Note 9 reset forgot password , screen lock , pin, pattern .... hard reset redmi 9 imei repair unlock tool
Ultimate Guide: Redmi 9 IMEI Repair and Unlock Tools (2026 Updated Method) This happens when the signature inside nvdata does
Never skip this step. If the write process fails, you need a backup to restore the phone to its baseline state. you must unlock the bootloader