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O2U SM-G991B Firmware List | SamFrew

SM-G991B O2U Firmware

Samsung Galaxy S21 5G: firmware by region, update history and specs →

69 results Page 1 of 7

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Showing 1-10 of 69

Model

Region

Version

OS

Build

Changelist

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

O2U United Kingdom

Android 15 Mar 9, 2026

Version: G991BXXSJHZC2
Changelist: 30959686

O2U United Kingdom

Android 15 Jan 21, 2026

Version: G991BXXSJHZA6
Changelist: 30959686

O2U United Kingdom

Android 15 Nov 5, 2025

Prev 1 2...6 7 Next

Version

G991BXXSIHYK1

Changelist

30959686

O2U United Kingdom

Android 15 Oct 2, 2025

Version: G991BXXSHHYJ1
Changelist: 30959686

O2U United Kingdom

Android 15 Aug 4, 2025

Version: G991BXXSGHYH1
Changelist: 30959686

O2U United Kingdom

Android 15 May 21, 2025

Version: G991BXXSFHYE1
Changelist: 30959686

O2U United Kingdom

Android 15 Apr 15, 2025

Version: G991BXXUEHYD5
Changelist: 30959686

O2U United Kingdom

Android 14 Jan 22, 2025

Version: G991BXXSEGYA2
Changelist: 28579955

O2U United Kingdom

Android 14 Dec 31, 2024

Version: G991BXXSEGXL2
Changelist: 28579955

O2U United Kingdom

Android 14 Dec 3, 2024

Version: G991BXXSEGXK1
Changelist: 28579955