[UPDATED ON 28/01/22]: Samsung Galaxy Z Flip got the latest Android 12 One UI 4.0 software update in the United States for Galaxy Z Flip 5G. It is available for both carrier locked and unlocked models. It comes with the firmware version F707USQS2EUL9 for the carrier locked version and F707U1UEU2EUL9 for the unlocked version. This latest software update comes with the December 2021 security patch.
[UPDATED ON 28/01/22]: Samsung Galaxy Fold and Samsung Galaxy Z Flip gets the latest Android 12 One UI 4.0 update in the United States. The update is now available for the unlocked versions of these Galaxy devices. The Galaxy Z Flip comes with the firmware version F700U1UEU4FUL9. One the other hand, the Galaxy Fold comes with the firmware version F900U1UEU6GUL9. This latest updates are available for both the unlocked and carrier locked models.
[THE ORIGINAL POST]: Earlier only Samsung Galaxy S20 users in a few countries could update their devices to Android 12 One UI 4.0. For The Galaxy S20 series, including the Fan Edition model, the up-gradation process started in December. To ensure the reliability of every new firmware, the One UI 4.0 upgrade was initially delivered to some selected European nations.
Now Samsung started to roll out their Android 12 based One UI 4.0 update for some of their devices in the US. It is now available for the carrier-locked version of Galaxy Z Flip, Galaxy Z Flip 3, and Galaxy Z Fold 3.
If you are from the US and have any of the models mentioned above, you can now check for the Android 12 update. To avail of this, you have to open the Settings app, select the Software update menu, and then click on the Download and install option.
Settings – Software Update – Download and Install
In the US, the One UI 4.0 update for the Galaxy Z Flip comes with firmware version F700USQS4FUL9. On the other hand, the unlocked Galaxy Z Flip 3 and Galaxy Z Fold 3 come with the firmware version F711U1UES2BU and F926U1UES1BULA respectively. This latest update improves a handful of previous bugs as well.
This latest One UI 4.0 update comes with improved stock apps, a Color Palette feature, better brightness settings, better privacy security features, etc. It will polish the overall user experience drastically.