Galaxy S21 series gets September 2024 security update

Firmware

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Samsung has released a new update for the Galaxy S21 series, but it's not the one (no pun intended) you want. One UI 6.1.1 is not part of this update. It's just a regular security update that brings the September 2024 Android and One UI security patch to the Galaxy S21, S21+, and S21 Ultra.

Are the Galaxy S21, S21+, and S21 Ultra even eligible for One UI 6.1.1? Seeing as how they received just a single AI feature with the One UI 6.1 update, we don't think so. One UI 6.1.1 has many non-AI features and improvements as well, but Samsung will likely just bring those to the Galaxy S21 series with Android 15 and One UI 7.0.

For now, the only devices confirmed to be eligible for One UI 6.1.1 are the Galaxy S and Galaxy Z flagships launched in 2022 and later. The Galaxy Tab S8 and Galaxy Tab S9 tablet lineups are eligible as well. The update is currently rolling out to the Galaxy S24 series, S23 series, S23 FE, Fold 5, Flip 5, and Galaxy Tab S9 and will arrive on flagship devices from 2022 in the coming weeks.

The September security update for the Galaxy S21 series is available in Europe. It should start making its way to other regions in the coming days. You can identify the update through the build number G99xBXXSCGXH7 and download it over the air from the phone's Settings » Software update menu. You can also find it in our firmware library.

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Abhijeet Mishra - Editor-in-Chief

[email protected]

First Samsung device: SGH-D500

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.

Firmware Phone Europe Galaxy S21 Galaxy S21 Plus Galaxy S21 Ultra September 2024 security patch

samsung galaxy unpacked 2025 z flip fold 7 teaser

Galaxy S21 series gets new update, but not the one you want

Abhijeet Mishra - Editor-in-Chief

[email protected]

First Samsung device: SGH-D500

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