The specific Galaxy S21 5G SM-G991N U1 Firmware Download Package has a Stock ROM of Galaxy S21 5G SM-G991N U1. This helps you to bypass the FRP lock and revert from the root and custom ROM.
There are various reasons to flash “Stock Firmware on Galaxy S21 5G SM-G991N U1“. For instance, if your phone gets stuck on the logo and you need to remove the FRP lock from it.
How To Install Galaxy S21 5G SM-G991N U1 Stock Firmware:
1: Download and Install the Samsung USB Driver on your computer.
2: Download and extract the Galaxy S21 5G SM-G991N U1 Firmware files on your computer.
3: Now, Switch off your Smartphone.
4: Turn off the phone and boot into Download Mode.
Press and hold Volume Down, Home and Power button at the same time for 5-8 seconds until download mode is active.
5: In the Download mode, you can see a Warning Yellow Triangle Sign. In this situation, you must press the Volume Up key to continue.
6: Open Odin. Then, connect your phone to the pc.
7: After connecting the smartphone to the computer, Odin will automatically recognize the device and display the “Added” message in the lower left panel.
8: Click the PDA button and select the Firmware.tar file.
9: Now, click the Start button in Odin to begin the Flashing.
10: Flashing usually takes 30-50 seconds to complete on your Phone.
Once you spot the “Pass” message in Odin, you can unplug your device from the computer.
When your Galaxy S21 5G SM-G991N finally boots up, you should run your desired firmware.
To verify the installed firmware, go to Settings –> About Phone –> Software Information. Check the firmware number under “Baseband version.”
Disclaimer:
Read and understand the Full Guide before flashing.”Galaxy S21 5G SM-G991N U1 Firmware“.
Use these instructions at your own risk. We are not liable for any outcomes on your device due to following the information in this guide.