[U: Verizon, China, India/Brazil, Xfinity Mobile, China, US, South Korea, India] The Galaxy S21 series and Galaxy Z Fold/Flip 4 grabbed stable One UI 5.1 update

Mar 13/2023: Samsung Galaxy Z Fold 4 and Z Flip 4 grabbed the latest One UI 5.1 update in the US. This update is available on Verizon’s network. The latest update comes with the build number

  • Galaxy Z Fold 4 – F936USQS2CWB1
  • Galaxy Z Flip 4 – F721USQS2CWB1

Mar 02/2023: Samsung Galaxy S21 series grabbed the latest One UI 5.1 update in China. The latest update comes with the build number EWB2.

Mar 01/2023: Samsung Galaxy S21 series grabbed the latest One UI 5.1 update in India and Brazil. The latest update comes with the build number EWAF.

Feb 24/2023: Samsung Galaxy S21 series grabbed the latest One UI 5.1 update in the US. It is available on Xfinity Mobile’s network. The latest update comes with the build number G99xUSQU5EWAI.

Feb 23/2023: Samsung Galaxy Z Fold 4 and Galaxy Z Flip 4 grabbed the latest One UI 5.1 update in China.

Feb 20/2023: Samsung Galaxy Z Fold 4 and Galaxy Z Flip 4 grabbed the latest One UI 5.1 update in the US. The latest update is available in AT&T, Bluegrass Cellular, Cricket, C Spire, and Cellular South’s networks. This update comes with the build number F936U1UEU1CWAC for Galaxy Z Fold 4 and F721U1UEU1CWAC for Galaxy Z Flip 4.

Feb 14/2023: Samsung just released One UI 5.1 for the Galaxy S21 in South Korea.

Feb 14/2023: Samsung just released the One UI 5.1 for the Galaxy Z Fold 4 and Galaxy Z Flip 4 in India. More markets are likely to receive this update very soon. The latest update comes with the build number F936BXXU2CWB2 for the Galaxy Z Fold 4 while the Galaxy Z Flip 4 grabbed this update with the build number F721BXXU2CWB2.

Feb 13/2023: The One UI 5.1 stable era has now begun with a bang. As per the latest report, as of now, Samsung has rolled out the Android 13-based One UI 5.0 update to a lot of devices and recently the Galaxy S23 series grabbed its first software update. Recently, the Galaxy S22, Galaxy S22+ and Galaxy S22 Ultra grabbed the One UI 5.1 update in Europe.

Now, another Galaxy device has received the Android 13 stable update ahead of time. This time Samsung provided One UI 5.1 stable update for the Galaxy S21 series and the Galaxy Z Fold 4 in Europe and South Korea. The latest update also added the February 2023 security patch update.

Version Number:

  • Samsung Galaxy Z Fold 4: F936BXXU1CWAC
  • Samsung Galaxy S21: G991BXXU6EWAF
  • Samsung Galaxy S21 Plus: G996BXXU6EWAF
  • Samsung Galaxy S21 Ultra: G998BXXU6EWAF

Note: Before upgrading to the latest version make sure your smartphone is connected with a proper internet connection, we recommend you download it over WIFI so that you will not face any errors.

How To Update:

  • Using two fingers, swipe down from the top of the screen, and then tap the Settings icon.
  • Swipe and then tap Software update or System updates. It will vary between models.
  • Tap Download and install, or Check for system updates. If an update is available it should begin downloading automatically, although you may need to tap Download now on some devices.
  • When the download is complete, follow the on-screen instructions to install the update.

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