[UPDATE] Now available for the U.K.
Only 11 days after the initial release of stock Android 12, Samsung have begun rolling out their second official stock update of Android 12, One UI 4, for the S21 series of international devices.
With a Build date of just 3 days ago, it would seem that this is a bugfix update.
Initially, as always, this is a staged rollout to the non-carrier branded, stock Samsung CSC codes first.
The Galaxy S21 international devices that will receive this update are...
This latest release replaces the previous G99*BXXU3BUK8build on the international devices.
It is a FOTA, (Firmware Over The Air), update and you can check... Settings > Software update... to see if it is available for you. Alternatively, you can connect to the Samsung PC suite, Smart Switch and check via that.
The update = G99*BXXU3BUKG
Download = 330.59MB
Build date = 23 November 2021
Release date = 26 November 2021
Camera version = 12.0.00.83 (no change)
One UI version = 4.0
Android Security patch = 01 November 2021
This is the 21st stable update for the Exynos model in 305 days. Average = 1 update every 15 days.
TOP TIP: Wipe the phone's cache partition and use the Galaxy App Booster after updating.
(N.B. This post will be updated as more information becomes available)
For an unlucky few a Factory Reset is the best option to sort out their issues. I always perform a Factory Reset and a clean, fresh, install when doing a platform update, Android 11 to 12 for instance, as I know that if there are issues it is not my old apps and settings causing the problem.
To locate your devices CSC code, go to...
Settings >About phone > Software information > Service provider software version (see screenshot)
Still no BUKG update for U.K. users on the carrier branded Three network on CSC code H3G.
Can anyone with the BUKG release confirm if it fixes the very bad lag when you double tap on the Recent Apps button? Please confirm that you experienced it before and that it is resolved now. I'm on BUKF and it's still an issue for me. Thanks!
BUKF release is for the U.S.A. Snapdragon models and not the European Exynos devices that do not suffer from the problem refresh rate and lag issues.
At long last and only 3 weeks late, the Three network carrier branded devices on CSC code H3G, have finally received the BUKG update described in post #1
Now all they need is the December Security patch, BUL1, that was released a week ago.