Download and Install Galaxy S9 & S9+ One UI 3.1 ROM (Android 11)

Follow the article below to learn how to install the One UI 3.1 ROM on the Samsung Galaxy S9/S9+. Samsung is rolling out the One UI 3.1 update to many devices such as the Galaxy S20, S10, Note 10, and a number of midrange A and M series. However, the update is not available for the Samsung Galaxy S9/S9+.

One UI 3.1 is the last One UI update based on Android 11. As of this moment, the Galaxy S9/S9+ has not made the list. Do not worry though, because there are custom ROMs already available for this phone.

NOBLE ROM is the best solution if you want to get a taste of One UI 3.1. Developed by recognized developer AlexisXDA, the ROM is based on the latest Android 11 firmware (FUBD) of the Samsung Galaxy S10.

Download Samsung Galaxy S9/S9+ One UI 3.1 ROM


Flashing a custom ROM on your Galaxy S9/S9+ is a pretty straightforward process if you follow the instructions carefully. However, please note that your warranty might be void. We shall not be held responsible if you break your phone. Please proceed at your own risk.

The ROM works on the following variants of the S9/S9+:

  • SM-N960F
  • SM-N960FD
  • SM-N960N
  • SM-N965F
  • SM-N965FD
  • SM-N965N

ROM Features

The ROM comes with a number of features.  It is based on the latest BUC1 firmware with March 2021 security patches. It is odexed and debloated. There are a few tweaks to improve battery life and performance.

Download ROM

How To Install

You need a custom recovery to flash this ROM. We recommend TWRP Furthermore, make a full backup of the phone.

Step 1: Download the ROM file and transfer it to the internal storage of your phone.

Step 2: Turn your phone off and go into recovery mode. To do so, press and hold the Volume up, Bixby, and Power buttons at the same time.

Step 3: While in recovery mode, tap on BACKUP and select: System Image, Vendor Image, Boot Image, Data, Baseband and EFS. These fields are the most important to save your data.

Step 4: Then go back and tap on Wipe. Select Advanced Wipe and select system, vendor, data, cache, dalvik and swipe to wipe.

Step 5: Once you have wiped data, tap on Install and select the downloaded ROM file. Swipe to flash.

    • For G960F/FD/N users: After flashing the ROM, immediately flash the camera fix zip file. Reboot your phone, and then flash the kernel fix file.

Step 6: Wait for the new ROM to be installed on your phone.

Once the installation process is over, reboot your phone. The first boot will take a while. That is it! Enjoy the new One UI 3.1 ROM on your Samsung Galaxy S9/S9+.




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