Free Download in gsmxt.com Samsung Galaxy S21 5G SM-G991U R(Android 11) (BIT 4) Official Full Firmware , for Unbrick Dead after Flash, Repair Stuck on Logo, Screen Unlock, Pattern Unlock, FRP (Factory Reset Protection) / Google Account, etc.
To repair damage to software, you can do a factory reset, if you can’t do it with factory reset, you can flash it, and how to flash, can with Odin or other Samsung Flasher
Download Full Firmware Samsung S21 5G SM-G991U R(Android 11) (BIT 4):
Sever: Google Drive | Sever: Androidfilehost
How to Flash Firmware by Odin
Download Odin :
To enter recovery mode, following these steps:
- Power off your Samsung phone.
- Press and hold “Volume Down + Power + Home” button at the same time, and as soon as the phone reboot, release all three buttons and wait
- Release all three buttons when Samsung phone reboot and you see a warning sign.
- Press Volume Up to enter the main screen of Recovery mode.