To restore a dead or bootlooping device, follow these general steps:
: Ensure the phone has at least 30% charge before starting to avoid a hard brick during the process. Realme C21-Y RMX3263 Firmware Official Unbrick,...
: Install the necessary Unisoc USB Drivers on your PC to ensure the device is recognized in "Download Mode". To restore a dead or bootlooping device, follow
: Flashing official firmware will erase all user data . click the "Load Packet" (gear icon)
: Launch the SPD Upgrade Tool , click the "Load Packet" (gear icon), and select the downloaded .pac firmware file.