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Last updated: October 11th, 2021 at 13:28 UTC+02:00
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However, while the previous update didn't bring anything but security enhancements, the changelog for this one says that overall stability of the device has been improved. It's not an exciting changelog, but it suggests Samsung and T-Mobile had a good reason to push out another update with the same security patch. Not that they need any reason other than the fact that they're testing Android 12 and One UI 4.0 for Samsung's latest Galaxy S flagships at the moment, but still.
In any case, the latest update for T-Mobile Galaxy S21 units comes with firmware version G99xUSQU4AUIL and can be downloaded over the air from the phone's Settings » Software update menu. The relevant firmware is also available in our archive and can be used for manually upgrading using a Windows PC.
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Abhijeet's writing career started with guides for custom firmware for Samsung devices (including the original Galaxy S), and he moved to SamMobile in mid-2013 and worked up the ranks to Editor-in-chief. In addition to phones and mobile devices, his interests include gaming on both PC and console, PC hardware, and spending countless hours on YouTube watching videos on tech, movies, games, politics, and internet dramas.
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