F956BXXS4EZJ1 – Galaxy Z Fold6 firmware

Build F956BXXS4EZJ1 is a security update for the Galaxy Z Fold6 (SM-F956B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 28, 2026 (method) and has reached 73 regions so far. It keeps bootloader bit 4, so downgrading to the previous build F956BXXU4EZIH is still possible. Samsung still serves this file.

Model
SM-F956B
Android
Android 17
Type
Security
Bootloader bit
4
First released
Oct 28, 2026
Regions
73

Rollout timeline by region

The date each region code (CSC) first received F956BXXS4EZJ1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUYEurope (Multi-CSC)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
ACRGhanaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
AFGAfghanistanOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
AFRAfricaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
DKRSenegalOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
ECTNigeriaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
EGYEgyptOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
ILOIsraelOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
KSASaudi ArabiaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
LYSLibyaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MIDMiddle EastOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MWDMoroccoOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
PAKPakistanOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
PKDPakistanOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
TUNTunisiaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XFASouth AfricaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XFVSouth Africa (Vodacom)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XSGUnited Arab EmiratesOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MM1Singapore (M1)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
OPSAustralia (Optus)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SINSingapore (Singtel)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
STHSingapore (StarHub)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
TELAustralia (Telstra)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
THLThailandOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
VAUAustralia (Vodafone)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
BOGFrance (Bouygues)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
CAUCaucasusOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
EUXEurope (Multi-CSC)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
EVRUnited Kingdom (EE)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MEOPortugal (MEO)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
GLBPhilippines (Globe)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XMEMalaysiaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XNZNew ZealandOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XSAAustraliaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XSPSingaporeOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XTCPhilippinesOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XXVVietnamOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MOBAustria (A1)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MOTSlovenia (Telekom)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MSRSerbiaOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
PLSPoland (Plus)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
PRTPoland (Play)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SFRFrance (SFR)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SIMSlovenia (A1)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SKZKazakhstanOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SWCSwitzerlandOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
TOPSerbia/MontenegroOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
TURTurkeyOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
VIPCroatia (A1)Oct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
XIDIndonesiaOct 28, 2026day 0F956BXXS4EZJ1/F956BOLE4EZJ1/F956BXXU4EZIH
SEKUkraineOct 28, 2026day 0F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
BNGBelgiumOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
INSIndiaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
NPBNepalOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
SLKSri LankaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
AROArgentinaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
CHOChileOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
COOColombiaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
GTOGuatemalaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
MXOMexicoOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
PEOPeruOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
TCEMexico (Telcel)Oct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
UPOUruguayOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
UYOUruguayOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
TPAPanamaOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH
ZTABrazil (Claro)Oct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
ZTMBrazil (TIM)Oct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
ZTOBrazilOct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
ZVVBrazil (Vivo)Oct 29, 2026+1 dayF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
CRCCosta RicaNov 4, 2026+7 daysF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
CTIArgentina (Claro)Nov 4, 2026+7 daysF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
ECOEcuadorNov 4, 2026+7 daysF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH
COMColombia (Claro)Nov 5, 2026+8 daysF956BXXS4EZJ1/F956BOWO4EZIH/F956BXXU4EZIH

Download and release notes

samloader download -m SM-F956B -r EUX -v F956BXXS4EZJ1/F956BOXM4EZJ1/F956BXXU4EZIH

Samsung's release notes and security patch level for this update: SM-F956B / EUX on doc.samsungmobile.com. What each part of the build number means: decode F956BXXS4EZJ1.