Samsung Galaxy S21 Ultra SM-G998N Stock Firmware

This is the official Android 13, 12, and 11 stock firmware/ROM(Flash file) for the Samsung Galaxy S21 Ultra SM-G998N.

The flash file for the Samsung Galaxy S21 Ultra SM-G998N is necessary when you want to perform any of the following software-related tasks:

  • Upgrade/Update your Samsung Galaxy phone’s firmware.
  • Reinstall the stock ROM that was officially installed.
  • Unroot your Samsung Android device.
  • Fix software issues that cause your device OS(Operating System) and apps to hang or misbehave.
  • Fix unknown baseband error.
  • Fix Samsung devices that are in a boot loop like hanging on the Samsung logo or rebooting continually.
  • Use the firmware for Android development purposes.
  • Remove malware, virus, and spyware from your Samsung device and more.

To flash the firmware to your Samsung device, we made a comprehensive Samsung Android firmware flashing tutorial using Odin. You will need to read that post to be able to flash a firmware successfully to any Samsung Android device.

Samsung Galaxy S21 Ultra SM-G998N Stock ROM Firmware(Flash File)

Here are the links to the stock firmware/flash file for the Samsung Galaxy S21 Ultra SM-G998N with the latest Android version available.

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version13
BasebandLUC G998NKSU3DVKC

Download

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version12
BasebandLUC G998NKSU3BUK9

Download

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version11.0
BasebandG998NKSU1AUA4_G998NOKR1AUA4_KOO

Download

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version11.0
BasebandG998NKSU1AUA4_G998NOKR1AUA4_KTC

Download

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version11.0
BasebandG998NKSU1AUA4_G998NOKR1AUA4_LUC

Download

BrandSamsung
NameGalaxy S21 Ultra
ModelSM-G998N
Android Version11.0
BasebandG998NKSU1AUA4_G998NOKR1AUA4_SKC

Download

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