S731BXXU9CZIF – Galaxy S25 FE firmware

Build S731BXXU9CZIF is a feature update for the Galaxy S25 FE (SM-S731B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 5, 2026 (method) and has reached 80 regions so far. It keeps bootloader bit 9, so downgrading to the previous build S731BXXS9BZH1 is still possible. Samsung still serves this file.

Model
SM-S731B
Android
Android 17
Type
Feature
Bootloader bit
9
First released
Oct 5, 2026
Regions
80

Rollout timeline by region

The date each region code (CSC) first received S731BXXU9CZIF, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AFGAfghanistanOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
BRITaiwanOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
EGYEgyptOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
GLBPhilippines (Globe)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
KSASaudi ArabiaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
LYSLibyaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
MIDMiddle EastOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
MM1Singapore (M1)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
MWDMoroccoOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
PAKPakistanOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
PKDPakistanOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SINSingapore (Singtel)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
STHSingapore (StarHub)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
THLThailandOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
TUNTunisiaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
TURTurkeyOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XFASouth AfricaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XFVSouth Africa (Vodacom)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XIDIndonesiaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XMEMalaysiaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XSAAustraliaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XSGUnited Arab EmiratesOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XSPSingaporeOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XTCPhilippinesOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XXVVietnamOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
BOGFrance (Bouygues)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
EUXEurope (Multi-CSC)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
EUYEurope (Multi-CSC)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
MOBAustria (A1)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
PLSPoland (Plus)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
PRTPoland (Play)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SFRFrance (SFR)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SIMSlovenia (A1)Oct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SWCSwitzerlandOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
CAUCaucasusOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SERRussiaOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SKZKazakhstanOct 5, 2026day 0S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
BKDBangladeshOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
INSIndiaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
NPBNepalOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
SLKSri LankaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
GTOGuatemalaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
ILOIsraelOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
ACRGhanaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
AFRAfricaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
DKRSenegalOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
ECTNigeriaOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
XNZNew ZealandOct 6, 2026+1 dayS731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF
ZTABrazil (Claro)Oct 8, 2026+3 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
ZTOBrazilOct 8, 2026+3 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
ZTMBrazil (TIM)Oct 8, 2026+3 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
ZVVBrazil (Vivo)Oct 8, 2026+3 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
IUSMexico (AT&T)Oct 13, 2026+8 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
MXOMexicoOct 13, 2026+8 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
TCEMexico (Telcel)Oct 13, 2026+8 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
COBColombia (Movistar)Oct 15, 2026+10 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
COLColombiaOct 15, 2026+10 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
COOColombiaOct 15, 2026+10 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
BVOBoliviaOct 20, 2026+15 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CGUGuatemala (Claro)Oct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CRCCosta RicaOct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
DORDominican RepublicOct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
EBEEcuadorOct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
ECOEcuadorOct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
GLONigeria (Glo)Oct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
PGUGuatemalaOct 22, 2026+17 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CDRDominican RepublicOct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
COMColombia (Claro)Oct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
PEOPeruOct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
PETPeru (Movistar)Oct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
PNTPanamaOct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
SAMOceaniaOct 26, 2026+21 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CHEChile (Entel)Oct 28, 2026+23 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CHLChile (Claro)Oct 28, 2026+23 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CHOChileOct 28, 2026+23 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CHTChile (Movistar)Oct 28, 2026+23 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
AROArgentinaNov 3, 2026+29 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
CTIArgentina (Claro)Nov 3, 2026+29 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
PSNArgentina (Personal)Nov 3, 2026+29 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF
UFNArgentina (Movistar)Nov 3, 2026+29 daysS731BXXU9CZIF/S731BOWO9CZIF/S731BXXU9CZIF

Download and release notes

samloader download -m SM-S731B -r EUX -v S731BXXU9CZIF/S731BOXM9CZIF/S731BXXU9CZIF

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 S731BXXU9CZIF.