Download and Install Galaxy M20 One UI 3.1 ROM (Android 11)

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 M20.

One UI 3.1 is the last One UI update based on Android 11. As of this moment, the Galaxy M20 has not made the list. Do not worry though, because there are custom ROMs already available for this phone.

TreeUI is the best solution if you want to get a taste of One UI 3.1. Developed by senior member VDavid003, the ROM is based on the latest firmware (DUBA) and has all the benefits that come with a custom ROM.

Download Samsung Galaxy M20 One UI 3.1 ROM


Flashing a custom ROM on your Galaxy M20 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 M20:

  • SM-M205F/DS
  • SM-M205FN
  • SM-M205M
  • SM-M205G

ROM Features

The ROM comes with a number of features.  It is based on the latest DUBA 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 Make sure you have the latest modem and bootloader installed.

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 and power buttons at the same time.

Step 3: While in recovery mode, wipe data and perform a factory reset. Additionally, wipe vendor and dalvik cache.

Step 4: Tap on Install and select the downloaded ROM file. Swipe to flash.

Step 5: 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 M20.