Samsung Galaxy S21 Ultra SM-G998B firmware download with product code COO region Colombia. SM-G998B firmware has version number PDA G998BXXU1AUAC and CSC G998BOWO1AUAC. The operating system of Samsung Galaxy S21 Ultra SM-G998B firmware is Android 11, with build date 24 Jan 2021 Security patch level date is 01-Jan-2021, with changelist 20701476.

Device Name Galaxy S21 Ultra
Model No. SM-G998B
Region COO-Colombia
Changelist 20701476
Firmware Build Date 24-01-2021
Security Patch Level 01-01-2021
Os Version Android 11
File Size 5.9GB

Download links

Mirror 1 (Mega) Mirror 2 (AFH)

Flashing Guide

Follow just these seven step quiet simple and easy.

  1. Download and extract a zip firmware file.
  2. Just Odin Tool open it.
  3. Go to Boot your device using Download Mode.
  4. Then, you press and hold the Volume Up and the Power buttons at the same time for 4-5 seconds.
  5. After, connect the computer with a device through the USB cable. Check the “Auto Reboot” and “Reset Time” options available in Odin Tool.
  6. Click the AP/PDA button and select a tar.md5 file from the extracted folder.
  7. Next, press the start button to continue the Flash firmware process update on your device.

For complete guide Samsung flashing with odin click here.


First of all, you must take a backup user’s important data in an external drive or In your PC. Cause, the flashing process erased all of your mobile user data.

Please make sure that you download the correct firmware for your device. If you are using Samsung devices, you can check the device model number located in the setting- About. Along, you get Download mode on the backside of your Samsung device.

Droidhelper will not responsible for any damage caused by using the Samsung Galaxy S21 Ultra SM-G998B firmware file. Because we don’t edit or custom these files. This firmware released on the official Samsung website

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