SamMobile has affiliate and sponsored partnerships. If you buy something through one of these links, we may earn a commission. Learn more.

Unlocked Galaxy S21 units in the US join the Android 12 update party


Last updated: November 25th, 2021 at 11:25 UTC+02:00

Samsung had recently released the Android 12 update to international and US carrier-locked variants of the Galaxy S21 series. Now, the unlocked variants of the smartphones are getting the Android 12-based One UI 4.0 update in the US. The update is available on almost all US carriers, including AT&T, Bluegrass Cellular, Cellular South, Comcast, Sprint, Tracfone, and Xfinity Mobile.

This major Android OS update for the Galaxy S21, Galaxy S21+, and the Galaxy S21 Ultra comes with firmware version G99xU1UEU4BUK7. Apart from One UI 4.0, the update also includes the November 2021 security patch.

If you are a Galaxy S21 series smartphone user in the US, you can check for the update manually by navigating to Settings » Software update and tapping on Download and install. You can also download the appropriate firmware file from our database and flash it manually (but not before backing up all your important data).

One UI 4.0 is based on Android 12. It features a revamped UI design with Material You-like Color Palette feature that extracts colors from the chosen wallpaper and applies it throughout the UI and Samsung’s and Google’s apps. The update includes improved stock apps, improved Bixby, more fluid performance, new widget designs, a new widget picker UI, and enhanced privacy and security.

You can view most of the important One UI 4.0 features in our dedicated video below.

Join SamMobile’ss Telegram group and subscribe to our YouTube channel to get instant news updates and in-depth reviews of Samsung devices. You can also subscribe to get updates from us on Google News.

FirmwarePhone Android 12Galaxy S21Galaxy S21 PlusGalaxy S21 UltraOne UI 4.0USA
Load 2 comments

You might also like

Galaxy S20 FE 5G’s unlocked model gets June 2022 security update …

A couple of weeks ago, the international variants of the Galaxy S20 FE and the Galaxy S20 FE 5G received the J …

  • By Asif Iqbal Shaik
  • 1 hour ago

Galaxy S20 FE 5G gets June 2022 security update in the US

Samsung released the June 2022 security update to the international model of the Galaxy S20 FE and the Galaxy …

  • By Asif Iqbal Shaik
  • 1 day ago

AT&T’s trade-in deal can get you up to $800 off on high-end …

Most good offers from cellular network carriers are usually limited to new customers. However, AT&T is run …

  • By Asif Iqbal Shaik
  • 2 days ago

[List] Galaxy devices that will be eligible for the One UI 4.1 update

Android 12 and One UI 4.0 are now available for a handful of Galaxy devices, but the journey continues and Sam …

  • By Mihai Matei
  • 2 days ago

Samsung Wallet app is now available for download

Earlier this week, Samsung announced a new service called Samsung Wallet that combines all the features of Sam …

  • By Asif Iqbal Shaik
  • 2 days ago

Galaxy S22’s June 2022 software update in the US brings camera i …

Earlier this month, Samsung had released a new software update to the Galaxy S22 series to improve the camera …

  • By Asif Iqbal Shaik
  • 3 days ago