Update Samsung S22 Ultra SM-S908B S908BXXU1AVCJ Firmware

August 16, 2023

Samsung has released the Galaxy S22 Ultra April 2022 security update for the Snapdragon and Exynos variants. This S908BXXU1AVCJ firmware update comes with improvements in device stability, bug fixes, and enhanced features. Moreover, this security patch also solves various privacy and security vulnerabilities found in the Samsung handset. To download this update via OTA (over-the-air), go to Settings » Software update » Download and install.

If you haven’t received this firmware update, you can follow this guide and manually flash Android 12 OneUI 4.1 S908BXXU1AVCJ on your Samsung Galaxy S22 Ultra SM-S908B. All you need to do is download the latest software update from our downloads section and install it using the Odin flash tool. Note that the update download size is around 1,500.37MB. Samsung has rolled out this update for European countries, including the United Kingdom (UK), Russia, France, Germany, Poland, Ukraine, Romania, Netherlands, Belgium, etc.

Note that this S908BXXU1AVCJ firmware is based on the latest Android 12 OneUI 4.1 version. After flashing this software update, your Samsung S22 Ultra will not limit CPU/GPU performance while gaming. Moreover, you’ll also get an alternate game performance mode in the game booster. Based on your phone temperature, your device will also maintain a performance management feature. Besides, you can even bypass the game optimizing service using third-party applications.

Samsung Galaxy S22 Ultra Firmware Update S908BXXU1AVCJ

How to Install Samsung Galaxy S22 Ultra Android 12 Firmware S908BXXU1AVCJ

Did you accidentally soft brick your Galaxy S22 Ultra and want to restore default settings? If yes, then refer to the below steps and manually flash Samsung Galaxy S22 Ultra Android 12 stock ROM. If you are new to this stuff, don’t worry. We’ll guide you through all the necessary steps.

Firmware Details

  • Model Name: Samsung Galaxy S22 Ultra
  • Model Number: SM-S908B
  • PDA Version: S908BXXU1AVCJ
  • CSC Version: S908BOXM1AVCJ
  • MODEM/CP Version: S908BXXU1AVD5
  • Region: Europe
  • OS Version: Android 12
  • Build Date: 2022-03-26
  • Security Patch level: 2022-04-01


Proceed further carefully. The installation steps given below are risky. If your device gets damaged during or after the flashing process, we at Droid Thunder will not be held liable. Most importantly, the Samsung firmware used below is the property of its respective owners.


Flash this Android 12 software update only on Samsung Galaxy S22 Ultra with the model number SM-S908B. Do NOT install this Android 12 stock ROM on any other device or variant. It might cause permanent damage or brick your phone.


  • You’ll need a standard USB to Type C cable and a Windows computer.
  • Make sure to charge your Android device to a minimum of 50%.
  • Since everything gets wiped out, back up your contacts, messages, apps, etc.,
  • Enable USB debugging mode from the settings.
  • Install the latest Samsung USB Drivers on your PC.
  • Temporary disable all the security tools on the computer.

Did everything as given above? If yes, then let’s get ready for the Samsung Galaxy S22 Ultra SM-S908B Android 12 S908BXXU1AVCJ flashing process.




Samsung Firmware Installation Guide

Now that you’ve downloaded the latest firmware update, it is time to flash it on your Android handset. Follow our guide given below to install the Android 12 update.

Wrapping Up

Finally! This is how you can install the official Samsung Galaxy S22 Ultra Android 12 S908BXXU1AVCJ stock firmware April 2022 security patch update. Go to the Settings » About Phone » Software Information to confirm the same. Enjoy the new Android 12 OneUI 4.1 features with this latest stock ROM. If you have any questions, let us know in the comments section below, we’ll help you out!

Leave a Comment

4 thoughts on “Update Samsung S22 Ultra SM-S908B S908BXXU1AVCJ Firmware

  1. Hallo Dears,

    I live in Germany, Today morning I installed the latest update in my S22 Ultra but unfortunately since update my mobile start to restart without stopping and it’s freezing.

    could you please advise as I switch it off and for sure it’s very important for me.

    Best Regards,

    • Could you please share a few more details?
      1) Are you using S22 Ultra with model number SM-S908B?
      2) Which firmware file did you flash? What was the firmware (CSC) version? For e.g. S908BOXM2BVJA
      3) Did you try wiping the cache partition from the recovery mode? If not, check out this video to do the same: https://www.youtube.com/watch?v=UOBeL-O8aMs

      • Thanks a lot for taking care and nice reply.
        Exactly as you mentioned Galaxy S22 Ultra (SM-S908B) and Build Number : S908BXXU2BVJAAndroid version : T(Android 13)Release Date : 2022-10-24Security patch level : 2022-10-01

        I did wipe cash but still restarting, I went yestrday to the shop and they advised to send it back to SAMSUNG.

        • Thanks a lot for taking care and nice reply.

          No Problem. Happy to help 🙂

          I did wipe cash but still restarting.

          Did you take a backup of your device before updating? I am asking this because if you have then you should try wiping the data/factory reset option.

          I went yesterday to the shop and they advised me to send it back to SAMSUNG

          If you’ll go to Samsung then they might flash another / same firmware and factory reset the phone.

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