F966BXXSCBZH3 – Galaxy Z Fold7 firmware

Build F966BXXSCBZH3 is a security update for the Galaxy Z Fold7 (SM-F966B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 31, 2026 (method) and has reached 68 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 F966BXXSBBZG3 is blocked. Samsung still serves this file.

Model
SM-F966B
Android
Android 16
Type
Security
Bootloader bit
12
First released
Aug 31, 2026
Regions
68

Rollout timeline by region

The date each region code (CSC) first received F966BXXSCBZH3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AROArgentinaAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
CDRDominican RepublicAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
CGUGuatemala (Claro)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
CHOChileAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
COMColombia (Claro)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
COOColombiaAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
CRCCosta RicaAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
CTIArgentina (Claro)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
DORDominican RepublicAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
EBEEcuadorAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ECOEcuadorAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
GLONigeria (Glo)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
MXOMexicoAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
PEOPeruAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
PETPeru (Movistar)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
PGUGuatemalaAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
PSNArgentina (Personal)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
TCEMexico (Telcel)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
TGPParaguayAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
UFNArgentina (Movistar)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
UPOUruguayAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
UYOUruguayAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ZTABrazil (Claro)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ZTMBrazil (TIM)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ZTOBrazilAug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ZVVBrazil (Vivo)Aug 31, 2026day 0F966BXXSCBZH3/F966BOWOCBZH3/F966BXXSCBZH3
ACRGhanaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
AFRAfricaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
CAUCaucasusAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
DKRSenegalAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
ECTNigeriaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
GLBPhilippines (Globe)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
GTOGuatemalaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
ILOIsraelAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
INSIndiaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
KSASaudi ArabiaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MIDMiddle EastAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MM1Singapore (M1)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MOBAustria (A1)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MOTSlovenia (Telekom)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MSRSerbiaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
PLSPoland (Plus)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
PRTPoland (Play)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SEKUkraineAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SFRFrance (SFR)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SINSingapore (Singtel)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SKZKazakhstanAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
STHSingapore (StarHub)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SWCSwitzerlandAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
THLThailandAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
TOPSerbia/MontenegroAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
TURTurkeyAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XFASouth AfricaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XFVSouth Africa (Vodacom)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XIDIndonesiaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XMEMalaysiaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XNZNew ZealandAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XSAAustraliaAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XSGUnited Arab EmiratesAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XSPSingaporeAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XTCPhilippinesAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
XXVVietnamAug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
BOGFrance (Bouygues)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
EUXEurope (Multi-CSC)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
EUYEurope (Multi-CSC)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
MEOPortugal (MEO)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
SIMSlovenia (A1)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3
VIPCroatia (A1)Aug 31, 2026day 0F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3

Download and release notes

samloader download -m SM-F966B -r EUX -v F966BXXSCBZH3/F966BOXMCBZH3/F966BXXSCBZH3

Samsung's release notes and security patch level for this update: SM-F966B / EUX on doc.samsungmobile.com. What each part of the build number means: decode F966BXXSCBZH3.