S938BXXSBCZG3 – Galaxy S25 Ultra firmware

Build S938BXXSBCZG3 is a security update for the Galaxy S25 Ultra (SM-S938B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 13, 2026 (method) and has reached 92 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to S938BXXSACZF2 is blocked. Samsung still serves this file.

Model
SM-S938B
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 13, 2026
Regions
92

Rollout timeline by region

The date each region code (CSC) first received S938BXXSBCZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AFRAfricaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
BNGBelgiumJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
ECTNigeriaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
INSIndiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
NPBNepalJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SLKSri LankaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XFASouth AfricaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XFVSouth Africa (Vodacom)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
ACRGhanaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
AFGAfghanistanJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
DKRSenegalJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
EGYEgyptJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
ILOIsraelJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
KSASaudi ArabiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
LYSLibyaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MIDMiddle EastJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MWDMoroccoJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
PAKPakistanJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
PKDPakistanJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SKZKazakhstanJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
TUNTunisiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XSGUnited Arab EmiratesJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
BOGFrance (Bouygues)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
CAUCaucasusJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
EUXEurope (Multi-CSC)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
EUYEurope (Multi-CSC)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
GLBPhilippines (Globe)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MEOPortugal (MEO)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MM1Singapore (M1)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MOBAustria (A1)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MOTSlovenia (Telekom)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
MSRSerbiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
PLSPoland (Plus)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
PRTPoland (Play)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SERRussiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SFRFrance (SFR)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SIMSlovenia (A1)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SINSingapore (Singtel)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
STHSingapore (StarHub)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
SWCSwitzerlandJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
THLThailandJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
TOPSerbia/MontenegroJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
TURTurkeyJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
VIPCroatia (A1)Jul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XIDIndonesiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XMEMalaysiaJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XNZNew ZealandJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XSPSingaporeJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XTCPhilippinesJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XXVVietnamJul 13, 2026day 0S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
AROArgentinaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
BVOBoliviaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CDRDominican RepublicJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
COMColombia (Claro)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CTIArgentina (Claro)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
GTOGuatemalaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
PSNArgentina (Personal)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
TPAPanamaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
UFNArgentina (Movistar)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
ZTABrazil (Claro)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
ZTMBrazil (TIM)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
ZTOBrazilJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
ZVVBrazil (Vivo)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
OPSAustralia (Optus)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
TELAustralia (Telstra)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
VAUAustralia (Vodafone)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
XSAAustraliaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3
CGUGuatemala (Claro)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CRCCosta RicaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
DORDominican RepublicJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
EBEEcuadorJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
ECOEcuadorJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
GLONigeria (Glo)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
PEOPeruJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
PETPeru (Movistar)Jul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
PGUGuatemalaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
PNTPanamaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
SAMOceaniaJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
UYOUruguayJul 15, 2026+2 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
COBColombia (Movistar)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
COLColombiaJul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
COOColombiaJul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
IUSMexico (AT&T)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
MXOMexicoJul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
TCEMexico (Telcel)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
TMMMyanmarJul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CHEChile (Entel)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CHLChile (Claro)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CHOChileJul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
CHTChile (Movistar)Jul 20, 2026+7 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
TGPParaguayAug 4, 2026+22 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3
UPOUruguayAug 4, 2026+22 daysS938BXXSBCZG3/S938BOWOBCZG3/S938BXXSBCZG3

Download and release notes

samloader download -m SM-S938B -r EUX -v S938BXXSBCZG3/S938BOXMBCZG3/S938BXXSBCZG3

Samsung's release notes and security patch level for this update: SM-S938B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S938BXXSBCZG3.