Go to Settings > About Phone > Software Information and tap "Build Number" seven times. Then, go to Developer Options and enable USB Debugging and OEM Unlocking . Step-by-Step Installation Guide Step 1: Download the Stock Firmware
(Use this instead of CSC if you want to keep data, though a clean flash with CSC is recommended). Step 2: Put Your Galaxy A20 into Download Mode Power off your phone completely. official samsung galaxy a20 sma205f ds stock rom
Flashing the stock ROM restores the original recovery and removes root access, which is often necessary for warranty claims. Go to Settings > About Phone > Software
Flashing firmware carries risks. Proceed with caution. We are not responsible for any damage caused to your device during this process. official samsung galaxy a20 sma205f ds stock rom