Medium to High. Requires specialized MediaTek flashing tools.
If the basic fixes don't work, the core Android system may be corrupted, requiring a full reinstallation of the operating system. This is where you'll need a Windows computer. How to Unbrick REDMI 14C
Select and confirm. This will erase all user data. Once done, select Reboot > Reboot to System . 2. Advanced: Flashing Stock ROM (Soft Brick) Medium to High