S931BXXSCCZH1 – Galaxy S25 firmware

Build S931BXXSCCZH1 is a security update for the Galaxy S25 (SM-S931B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 30, 2026 (method) and has reached 91 regions so far. It raises the bootloader bit from 11 to 12: once installed, the device no longer accepts firmware with bit 11 or lower, so a downgrade to S931BXXSBCZG3 is blocked. Samsung still serves this file.

Model
SM-S931B
Android
Android 16
Type
Security
Bootloader bit
12
First released
Aug 30, 2026
Regions
91

Rollout timeline by region

The date each region code (CSC) first received S931BXXSCCZH1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AFGAfghanistanAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
ECTNigeriaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XFASouth AfricaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XFVSouth Africa (Vodacom)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
ACRGhanaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
AFRAfricaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
DKRSenegalAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
EGYEgyptAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
GLBPhilippines (Globe)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
ILOIsraelAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
INSIndiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
KSASaudi ArabiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
LYSLibyaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MIDMiddle EastAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MM1Singapore (M1)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MWDMoroccoAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
NPBNepalAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
OPSAustralia (Optus)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
PAKPakistanAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
PKDPakistanAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SINSingapore (Singtel)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SLKSri LankaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
STHSingapore (StarHub)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
TELAustralia (Telstra)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
THLThailandAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
TUNTunisiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
VAUAustralia (Vodafone)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XIDIndonesiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XMEMalaysiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XNZNew ZealandAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XSAAustraliaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XSGUnited Arab EmiratesAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XSPSingaporeAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XTCPhilippinesAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
XXVVietnamAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
CAUCaucasusAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SERRussiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SKZKazakhstanAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
BOGFrance (Bouygues)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
EUXEurope (Multi-CSC)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
EUYEurope (Multi-CSC)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MEOPortugal (MEO)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MOBAustria (A1)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MOTSlovenia (Telekom)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
MSRSerbiaAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
PLSPoland (Plus)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
PRTPoland (Play)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SFRFrance (SFR)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SIMSlovenia (A1)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
SWCSwitzerlandAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
TOPSerbia/MontenegroAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
TURTurkeyAug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
VIPCroatia (A1)Aug 30, 2026day 0S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1
ZTOBrazilAug 31, 2026+1 dayS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
AROArgentinaAug 31, 2026+1 dayS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
BVOBoliviaAug 31, 2026+1 dayS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
COOColombiaAug 31, 2026+1 dayS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
GLONigeria (Glo)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
GTOGuatemalaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
MXOMexicoSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
PEOPeruSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
TPAPanamaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
UPOUruguaySep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
UYOUruguaySep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
TGPParaguaySep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
TMMMyanmarSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
UFNArgentina (Movistar)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
ZTABrazil (Claro)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
ZTMBrazil (TIM)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
ZVVBrazil (Vivo)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CDRDominican RepublicSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CGUGuatemala (Claro)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
PETPeru (Movistar)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
PGUGuatemalaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
DORDominican RepublicSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
EBEEcuadorSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
PNTPanamaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
PSNArgentina (Personal)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
SAMOceaniaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
TCEMexico (Telcel)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
COBColombia (Movistar)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
COLColombiaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
COMColombia (Claro)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
ECOEcuadorSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CRCCosta RicaSep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CTIArgentina (Claro)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
IUSMexico (AT&T)Sep 1, 2026+2 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CHEChile (Entel)Sep 15, 2026+16 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CHLChile (Claro)Sep 15, 2026+16 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CHOChileSep 15, 2026+16 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1
CHTChile (Movistar)Sep 15, 2026+16 daysS931BXXSCCZH1/S931BOWOCCZH1/S931BXXSCCZH1

Download and release notes

samloader download -m SM-S931B -r EUX -v S931BXXSCCZH1/S931BOXMCCZH1/S931BXXSCCZH1

Samsung's release notes and security patch level for this update: SM-S931B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S931BXXSCCZH1.