How To Guide [OneUI 4.0 Beta 1 & 2](EXYNOS) for S21 / Plus / Ultra - Download OTA Link

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Deleted member 8730448

no problem to flash AUIE to AUJ7 without wiping, reset etc. just connected to ODIN and flashed. thats my process
Did you check Knox Counter too (just for safety)?

I have never downgraded before, and would like to be sure not to make mistakes. :D


Senior Member
Sep 13, 2009
I'm going to update my rooted Samsung S21 from Android 11 One UI 3.1 to Android 12 One UI 4, can someone confirm that the standard firmware update procedure (patched ap + home_csc + bl + cp) will work?
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