S731BXXS9CZJ2 – Galaxy S25 FE firmware

Build S731BXXS9CZJ2 is a security update for the Galaxy S25 FE (SM-S731B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 21, 2026 (method) and has reached 76 regions so far. It keeps bootloader bit 9, so downgrading to the previous build S731BXXU9CZIF is still possible. Samsung still serves this file.

Model
SM-S731B
Android
Android 17
Type
Security
Bootloader bit
9
First released
Oct 21, 2026
Regions
76

Rollout timeline by region

The date each region code (CSC) first received S731BXXS9CZJ2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACRGhanaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
AFGAfghanistanOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
AFRAfricaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
BOGFrance (Bouygues)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
BRITaiwanOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
CAUCaucasusOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
DKRSenegalOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
ECTNigeriaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
EGYEgyptOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
EUXEurope (Multi-CSC)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
EUYEurope (Multi-CSC)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
GLBPhilippines (Globe)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
KSASaudi ArabiaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
LYSLibyaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
MIDMiddle EastOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
MOBAustria (A1)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
MWDMoroccoOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
PAKPakistanOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
PKDPakistanOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
PLSPoland (Plus)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
PRTPoland (Play)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SERRussiaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SFRFrance (SFR)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SIMSlovenia (A1)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SKZKazakhstanOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SWCSwitzerlandOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
THLThailandOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
TUNTunisiaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XFASouth AfricaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XFVSouth Africa (Vodacom)Oct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XIDIndonesiaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XMEMalaysiaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XNZNew ZealandOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XSAAustraliaOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XSGUnited Arab EmiratesOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XTCPhilippinesOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XXVVietnamOct 21, 2026day 0S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
BKDBangladeshOct 22, 2026+1 dayS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
INSIndiaOct 22, 2026+1 dayS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
NPBNepalOct 22, 2026+1 dayS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SLKSri LankaOct 22, 2026+1 dayS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
ILOIsraelOct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
MM1Singapore (M1)Oct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
SINSingapore (Singtel)Oct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
STHSingapore (StarHub)Oct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
TURTurkeyOct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
XSPSingaporeOct 25, 2026+4 daysS731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2
BVOBoliviaOct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
CDRDominican RepublicOct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
GTOGuatemalaOct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
IUSMexico (AT&T)Oct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
MXOMexicoOct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
TCEMexico (Telcel)Oct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
ZTABrazil (Claro)Oct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
ZTMBrazil (TIM)Oct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
ZTOBrazilOct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
ZVVBrazil (Vivo)Oct 28, 2026+7 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
CGUGuatemala (Claro)Oct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
COBColombia (Movistar)Oct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
COLColombiaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
COOColombiaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
CRCCosta RicaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
DORDominican RepublicOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
EBEEcuadorOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
ECOEcuadorOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
GLONigeria (Glo)Oct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
PEOPeruOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
PETPeru (Movistar)Oct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
PGUGuatemalaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
PNTPanamaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
SAMOceaniaOct 30, 2026+9 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
AROArgentinaNov 9, 2026+19 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
COMColombia (Claro)Nov 9, 2026+19 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
CTIArgentina (Claro)Nov 9, 2026+19 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
PSNArgentina (Personal)Nov 9, 2026+19 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2
UFNArgentina (Movistar)Nov 9, 2026+19 daysS731BXXS9CZJ2/S731BOWO9CZJ2/S731BXXS9CZJ2

Download and release notes

samloader download -m SM-S731B -r EUX -v S731BXXS9CZJ2/S731BOXM9CZJ2/S731BXXS9CZJ2

Samsung's release notes and security patch level for this update: SM-S731B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S731BXXS9CZJ2.