S901BXXSMGZB2 – Galaxy S22 firmware

Build S901BXXSMGZB2 is a security update for the Galaxy S22 (SM-S901B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Mar 8, 2026 (method) and has reached 22 regions so far. It raises the bootloader bit from 21 to 22: once installed, the device no longer accepts firmware with bit 21 or lower, so a downgrade to S901BXXSLGZA1 is blocked. Samsung still serves this file.

Model
SM-S901B
Android
Android 16
Type
Security
Bootloader bit
22
First released
Mar 8, 2026
Regions
22

Rollout timeline by region

The date each region code (CSC) first received S901BXXSMGZB2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
EUXEurope (Multi-CSC)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
MOBAustria (A1)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
O2CCzech Republic (O2)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SFRFrance (SFR)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
VIPCroatia (A1)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
MEOPortugal (MEO)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
MSRSerbiaMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
PLSPoland (Plus)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
PRTPoland (Play)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
TIMItaly (TIM)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
TOPSerbia/MontenegroMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
BTBUnited Kingdom (BT)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
EUYEurope (Multi-CSC)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
MOTSlovenia (Telekom)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SEKUkraineMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SIMSlovenia (A1)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SWCSwitzerlandMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
CAUCaucasusMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
EVRUnited Kingdom (EE)Mar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SERRussiaMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2
SKZKazakhstanMar 8, 2026day 0S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2

Download and release notes

samloader download -m SM-S901B -r EUX -v S901BXXSMGZB2/S901BOXMMGZB2/S901BXXSMGZB2

Samsung's release notes and security patch level for this update: SM-S901B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S901BXXSMGZB2.