The specific Galaxy S21 Ultra SM-G998B U1 Firmware Download Package comes with a Stock ROM of Galaxy S21 Ultra SM-G998B U1 Security Patch Level 2020-12-01 (1 December 2020). This helps bypass the FRP lock and revert from the root and custom ROM.
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Samsung Galaxy S21 Ultra SM-G998B Binary 1 Android 11 R Portugal MEO – G998BXXU1ATLF
There are various reasons to flash “Stock Firmware on Galaxy S21 Ultra SM-G998B U1“. For instance, if your phone gets stuck on the logo and you need to remove the FRP lock from it.
The Advantages Of Stock ROM:
Fix boot loop issue
Update and Downgrade
Unroot or Fix Bugs
To solve the lag or stutter
Fix software issues.
Revert to stock firmware
Pre-requirements:
Supported Phone: Galaxy S21 Ultra SM-G998B U1
Charge your mobile: You may no less than a half charge.
How To Install Galaxy S21 Ultra SM-G998B U1 Stock Firmware:
1: Install the Samsung USB Driver on your pc.
2: Download and extract the Galaxy S21 Ultra SM-G998B U1 Firmware files on your computer.
3: Now, Switch off your Smartphone.
4: 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 Download mode a Warning Yellow Triangle Sign appeares . Press Volume Up to proceed.
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 Ultra SM-G998B 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 Ultra SM-G998B 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.