AUH9 firmware (with Sep1 security) is here for US unlocked S21 series

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The G998U1UES4AUH9 firmware is now OTA for the S21 Ultra (also downloadable via Frija). It is a security update only (as confirmed by the S, rather than U, before the bootloader number), and it brings the Sep 1 security patch.

Since it’s only a security patch, it has no new non-security features or bug fixes, so in particular it’s still on One UI 3.1 (not 3.1.1).

Please, let’s limit this thread to useful information about this particular update–no "Me too", "Not me yet", or "When will I get it?" posts here.

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