The Galaxy S20 series devices are eligible to get Samsung’s Android 12-based One UI 4.0 update. A few weeks ago, the company started the One UI 4 Beta program in several regions that allow users to experience the new features and changes even before the official release of a new major firmware update.

According to the latest info, Samsung has reportedly concluded the Android 12-based One UI 4 Beta program for the Galaxy S20, Galaxy S20+, and Galaxy S20 Ultra smartphone users in South Korea. Accordingly, we can expect a stable One UI 4.0 update rollout will soon begin for the Galaxy S20 series, at least in South Korea.

On the other hand, a recently emerged Samsung Members Android 12 upgrade notice revealed that the Galaxy S20 series devices will start getting the stable One UI 4.0 update in January 2022. Meanwhile, it looks like consumers must have to wait for a few days until the company officially begins the major update rollout.

Samsung’s Android 12 update comes with tons of new features such as a redesigned user interface with revamped icons and a Material You theming system. In addition, the One UI 4.0 enhances all of the stock apps, adds more lock screen widgets, quick settings toggles to turn off the camera and mic access, and more.

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Google rolled out the Android 12 update for Pixel smartphones, at the same time, Samsung is ready to introduce its One UI 4.0 update for the Galaxy devices later this year. Well, the initial Android 12 update rollout might begin from South Korea, the home ground of Samsung, but what about T-Mobile Galaxies in the US?

T-Mobile One UI 4.0 Update

On November 15, T-Mobile started rolling out the official Android 12-based One UI 4.0 update to the Galaxy S21 series devices in the US. However, the carrier is releasing the major software update gradually, therefore, a broader rollout will happen in near future.

To be mentioned, the Galaxy S21 series devices are the first to get the stable Android 12-based One UI 4.0 update in the international as well as the US market. In this article, we will cover all the latest Android 12 developments of T-Mobile for Samsung Galaxy devices.

T-Mobile One UI 4.0 Development Stages

• Completed:
  • Galaxy S21
  • Galaxy S21+
  • Galaxy S21 Ultra
• Testing:
  • Galaxy Z Fold 3 5G
  • Galaxy Z Flip 5 5G
• Development:
  • Galaxy A52 5G
  • Galaxy S20 5G
  • Galaxy S20+ 5G
  • Galaxy S20 Ultra 5G
  • Galaxy Z Fold 2 5G
  • Galaxy Note 20 5G
  • Galaxy Note 20 Ultra 5G
  • Galaxy Tab S7 and Tab S7+ 5G
  • Galaxy Z Flip 5G

Important links:

• T-Mobile Android 12 development stage
• T-Mobile Android 12 features

T-Mobile Android 12 One UI 4.0 update tracker

December 01, 2021

T-Mobile added new Galaxy devices in its Development and Testing stages in which the Galaxy Z Fold 3 and Galaxy Z Flip 3 are mentioned under the Android 12 testing section.

November 16, 2021

T-Mobile’s software support page mentions, the Android 12 and One UI 4.0 update is now under testing for the Galaxy S21, Galaxy S21+, Galaxy S21 Ultra, Galaxy Z Fold 3, and Galaxy Z Flip 3. To be mentioned, the carrier has developed the Android 12 firmware for these devices. Read more here

November 15, 2021

T-Mobile locked Galaxy S21, Galaxy S21+ and Galaxy S21 Ultra started getting upgraded to the Android 12-based One UI version 4.0.

November 11, 2021

T-Mobile’s Android 12 is still underway for Samsung’s Galaxy S21, Galaxy S21+ and Galaxy S21 Ultra smartphones. However, a Samsung official recently said that there will be no new One UI 4 Beta update as the stable rollout will begin very soon.

October 31, 2021

The Android 12 update is under development for the Galaxy S21 series. Source

October 01, 2021

T-Mobile started developing Android 12-based One UI 4.0 update for the Galaxy S21, Galaxy S21+ and Galaxy S21 Ultra smartphones. Currently, the release date is unknown, but it may happen sometime in December this year. Read more

Starting November 15, Samsung began the stable One UI 4.0 update rollout for the Galaxy S21 series devices. At the same time, the company confirmed that the Android 12 update is coming next to more Galaxy flagship devices.

Undoubtedly, the company is rolling out the stable Android 12-based One UI 4.0 update to Galaxy devices in a staged manner, which depends on regions, countries as well as network carriers.

One UI 4 Features:

• Samsung’s Android 12 update comes with tons of new features such as a redesigned user interface with revamped icons and Material You theming system.
• In addition, the One UI 4.0 enhances all of the stock apps, adds more lock screen widgets, quick settings toggles to turn off the camera and mic access and more.

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Below, you can see the country, carrier and state-wise One UI 4.0 update rollout status for various Galaxy devices. We’ll update this article whenever any new Galaxy phone or tablet joins the stable Android 12 camp.

Updated on: November 30, 2021