How to Install Stock ROM on Samsung SM-G998U1 (Firmware Guide)

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Last updated on April 8th, 2021 at 01:30 am

Samsung Galaxy S21 Ultra is a huge, powerful Android phone with some big upgrades over the Galaxy S20 Ultra. The device comes with a 6.8-inch Dynamic AMOLED 2X display, Contour Cut Camera, and Corning Gorilla Glass Victus. It is powered by Qualcomm Snapdragon 888 or Exynos 2100 (Global).

In this tutorial, we will guide you on how to install the Samsung SM-G998U1 (Galaxy S21 Ultra 5G) flash file using the Samsung flash tool (also known as ODIN flash tool). On this page, you will find the official stock firmware file for the Samsung Galaxy S21 Ultra 5G SM-G998U1, drivers, and flash tool.

By flashing the Stock ROM file, you can always fix the device software issue such as boot loop, lag, soft brick or hard brick, remove pattern lock, FRP lock, and many more.

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How to Install Stock ROM on Samsung SM-G998U1 (Firmware Guide)

Samsung Galaxy S21 Ultra 5G SM-G998U1 Firmware Flash Files:

Flash File Name: SM-G998U1_G998U1UEU2AUC8_11.0_file.zip
Build Number: G998U1UEU2AUC8
Security Patch: April 2021
Model:
SM-G998U1
Android Version: 11 R
Download
Flash File Name: SM-G998U1_G998U1UEU2AUB6_11.0_file.zip
Build Number: G998U1UEU2AUB6
Security Patch: March 2021
Model:
SM-G998U1
Android Version: 11 R
Download

Steps to Flash Stock ROM File on Galaxy S21 Ultra 5G SM-G998U1

Before we get straight to the steps to Install Stock Firmware on your Samsung Galaxy S21 Ultra 5G, let us take a look at the pre-requirements first.

Pre-Requirements: 

  • This Guide is for Samsung Galaxy S21 Ultra 5G SM-G998U1
  • You need a Windows PC/Laptop and a USB cable to flash the firmware.
  • Charge your device with a minimum of 50% battery backup.
  • You have to download the latest Samsung USB Drivers and install them on your PC.
  • Make sure that you have ODIN Software installed on your PC.
  • Take a backup of your device (No Root) before doing anything.

Now, let’s take a look at Steps to flash Stock ROM on Samsung Galaxy S21 Ultra 5G.

Disclaimer:
We’re at GetDroidTips won’t be responsible for any kind of damage/error that occurs to your handset while/after following this guide or flashing any file. Proceed at your own risk.
  1. Download the Samsung SM-G998U1 firmware flash file
  2. Extract the contents of the firmware flash file zip.
  3. Launch the ODIN application
  4. Load the firmware files in their appropriate section
  5. Once you have loaded, now connect your phone to the computer (make sure to boot your device into download mode)
  6. Notice that the CO port will light up on Odin once you connect your phone.
  7. Click the Start button to install the firmware on your Samsung device.
  8. That’s it! You will see a PASS message once the installation is complete.
Follow Complete Guidelines

Check out our full-depth video guide as well.

Video Tutorial To Install Firmware

We hope that this guide will be helpful to you. If in case, you’re facing any issues, feel free to ask in the comments below.

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