F936BXXSCIZH3 – Galaxy Z Fold4 firmware

Build F936BXXSCIZH3 is a security update for the Galaxy Z Fold4 (SM-F936B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 2, 2026 (method) and has reached 80 regions so far. It keeps bootloader bit 12, so downgrading to the previous build F936BXXSCIZG3 is still possible. Samsung still serves this file.

Model
SM-F936B
Android
Android 16
Type
Security
Bootloader bit
12
First released
Sep 2, 2026
Regions
80

Rollout timeline by region

The date each region code (CSC) first received F936BXXSCIZH3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUYEurope (Multi-CSC)Sep 2, 2026day 0F936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
BOGFrance (Bouygues)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
BTBUnited Kingdom (BT)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
EVRUnited Kingdom (EE)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MEOPortugal (MEO)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MOBAustria (A1)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MOTSlovenia (Telekom)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MSRSerbiaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
O2CCzech Republic (O2)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
PLSPoland (Plus)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
PRTPoland (Play)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SFRFrance (SFR)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SIMSlovenia (A1)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SWCSwitzerlandSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
TIMItaly (TIM)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
TOPSerbia/MontenegroSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
VIPCroatia (A1)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
EUXEurope (Multi-CSC)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
AROArgentinaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
BVOBoliviaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
CDRDominican RepublicSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
CGUGuatemala (Claro)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
CHOChileSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
COBColombia (Movistar)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
COMColombia (Claro)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
COOColombiaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
CRCCosta RicaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
GLONigeria (Glo)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
GTOGuatemalaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MXOMexicoSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
PGUGuatemalaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
TCEMexico (Telcel)Sep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
TPAPanamaSep 3, 2026+1 dayF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
UPOUruguaySep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
UYOUruguaySep 3, 2026+1 dayF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ACRGhanaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
AFGAfghanistanSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
AFRAfricaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
CAUCaucasusSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
DKRSenegalSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
ECTNigeriaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
EGYEgyptSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
GLBPhilippines (Globe)Sep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
ILOIsraelSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
KSASaudi ArabiaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
LYSLibyaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MIDMiddle EastSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MM1Singapore (M1)Sep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
MWDMoroccoSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
PKDPakistanSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SEKUkraineSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SINSingapore (Singtel)Sep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SKZKazakhstanSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
STHSingapore (StarHub)Sep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
THLThailandSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
TUNTunisiaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
TURTurkeySep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XFASouth AfricaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XFESouth AfricaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XFVSouth Africa (Vodacom)Sep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XMEMalaysiaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XNZNew ZealandSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XSGUnited Arab EmiratesSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XSPSingaporeSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XTCPhilippinesSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XXVVietnamSep 6, 2026+4 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
XIDIndonesiaSep 6, 2026+4 daysF936BXXSCIZH3/F936BOLECIZE1/F936BXXSCIZE1
EBEEcuadorSep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ECOEcuadorSep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ZTABrazil (Claro)Sep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ZTMBrazil (TIM)Sep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ZTOBrazilSep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
ZVVBrazil (Vivo)Sep 8, 2026+6 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
BKDBangladeshSep 8, 2026+6 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
INSIndiaSep 8, 2026+6 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
SLKSri LankaSep 8, 2026+6 daysF936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1
PEOPeruSep 14, 2026+12 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
PETPeru (Movistar)Sep 14, 2026+12 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
PNTPanamaSep 14, 2026+12 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1
SAMOceaniaSep 14, 2026+12 daysF936BXXSCIZH3/F936BOWOCIZH3/F936BXXSCIZE1

Download and release notes

samloader download -m SM-F936B -r EUX -v F936BXXSCIZH3/F936BOXMCIZE1/F936BXXSCIZE1

Samsung's release notes and security patch level for this update: SM-F936B / EUX on doc.samsungmobile.com. What each part of the build number means: decode F936BXXSCIZH3.