S21 Ultra SM-G998B Binary 4 Firmware

The Galaxy S21 Ultra SM-G998B U4 Firmware Download Package comes with a Stock ROM of Galaxy S21 Ultra SM-G998B U4 Security Patch Level 2022-02-01 (February 1, 2022). This helps bypass the FRP lock and revert from the root and custom ROM.

Samsung Galaxy S21 Ultra SM-G998B Binary 4 Android 12 Brazil ZTO G998BXXU4BULF

There are various reasons to flash “Stock Firmware on Galaxy S21 Ultra SM-G998B U4“. For example, your phone will be stuck or hang on the logo. You want to remove the FRP lock from it.

If you’re going to hard reset your phone and cannot access the recovery menu. But most of the problems that cause flashing stock ROM are below.

The Advantages Of Stock ROM:

  • Flash Stock ROM to solve the boot loop issue
  • Update and Downgrade
  • Unroot or Fix Bugs on the phone
  • To solve the lag or stutter
  • By flashing Stock ROM, you can fix software issues.
  • Revert to stock to get your warranty.

Pre-requirements:

Galaxy S21 Ultra SM-G998B U4 Stock ROM Details:

SM-G998B U4 Brazil ZTO G998BXXU4CVB8:

Model SM-G998B Binary 4 U4, S4, Bit 4
Region / Country Brazil
Language Multi-Language
Android version Android 12 S
Operator / Carrier Clean ZTO (no logo, carrier apps)
AP / PDA G998BXXU4CVB8
CSC G998BOWO4CVB8
MODEM CP Version G998BXXU4CVB8
product code ZTO
Build Date 2022-02-16
Security Patch Level 2022-02-01 (February 1, 2022)
Size 7 GB
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Download Google Drive Android File Host
SM-G998B U4 Brazil ZTO G998BXXU4BULF:
Model SM-G998B Binary 4 U4, S4, Bit 4
Region / Country Brazil
Language Multi-Language
Android version Android 12 S
Operator / Carrier Clean ZTO (no logo, carrier apps)
PDA G998BXXU4BULF
CSC G998BOWO4BULG
MODEM CP Version G998BXXU4BULG
product code ZTO
Build Date 2021-12-23
Security Patch Level 2022-01-01 (January 1, 2022)
Size 6.8 GB
Download Google Drive Android File Host

How To Install Galaxy S21 Ultra SM-G998B U4 Stock Firmware:

Download the Odin and USB Drivers on your PC. Follow the below link to install the firmware using the Odin Flash tool.

How To Flash Samsung Stock Firmware With ODIN

1: Download and Install the Samsung USB Driver on your computer. If a Samsung USB Driver is installed on your computer, Skip this Step.

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2: Download and extract the  Galaxy S21 Ultra SM-G998B U4 Firmware  files on your computer.

3: Now, Switch off your Smartphone.

4: After switching off the phone, you must boot into Download Mode. To 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: Now, Download and open Odin. Then, connect your Smartphone to the computer.

7: Once you have connected the Smartphone to the computer, Odin will automatically recognize the device and show the “Added” message at the lower-left panel.

8: Once Odin detects your device, click the PDA button and select the Firmware.tar file.

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9: Now, click the Start button in Odin to begin the Flashing.

10: Flashing usually takes 30-50 seconds to complete the process on your Phone.

Once the Firmware process is completed you will be able to see a Green Box with Pass written on it in Odin. During this process, the Smartphone will reboot automatically.

Once you see the Pass message in Odin, you can disconnect your Device from the computer.

The flashing process will begin and should take about 10–12 minutes. Your device may take some time to reboot, but don’t be alarmed.

When your Galaxy S21 Ultra SM-G998B U4 finally boots up, you should be running your desired firmware.

If you want to check that the correct firmware is installed, head to Settings –> About Phone –> Software Information. The firmware number is located under the “Baseband version.”

Disclaimer:

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  • Please read and understand the Full Guide before flashing “Galaxy S21 Ultra SM-G998B U4 Firmware.
  • Use these instructions at your own risk. We will not be responsible for everything that happens to your device resulting from using information in this guide.
  • Before flashing, Stock ROM must have a 70–80% charge.

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