Galaxy Z Fold7 SM-F966B updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Fold7 (SM-F966B). The latest stable build is F966BXXUDCZJB (Android 17, feature update), first released on Nov 2, 2026. Samsung has published 20 stable builds for this model since Jul 9, 2025: 13 security and 7 feature updates, from Android 16 to Android 17. The current bootloader (binary) version is 13. A device on bit 13 only accepts firmware with bit 13 or higher – see downgrading and the bootloader bit.

Rollout: build F966BXXUDCZJB (Android 17 (One UI 9)) is live in 54 of 75 regions, first released on Nov 2, 2026 in EUY (Europe (Multi-CSC)). Still waiting: AFG, CDR, CGU, COM, CRC, DOR, EBE, ECO, EGY, GLO, LYS, MWD, MXO, PAK and 7 more. In India (INS) the latest official firmware (flash file) is F966BXXUDCZJB from Nov 3, 2026.

Latest build
F966BXXUDCZJB
Released
Nov 2, 2026
Android
Android 17
Bootloader bit
13
Regions
75
Stable builds
20

Update policy

Samsung promised 7 major Android upgrades and 7 years of security updates for the Galaxy Z Fold7, counted from its launch in July 2025 with Android 16. That makes Android 23 the last major version and security updates continue until about July 2032. It is currently on Android 17 (One UI 9), so 6 major upgrades are still to come.

OS upgrades promised
7
Security updates
7 years
Last major version
Android 23
Security support until
July 2032
Current version
Android 17 (One UI 9)
Status
Supported

Source: reported by sammobile.com. Samsung counts from the global launch and does not publish exact end dates; the dates above are launch month plus the promised years.

Compare all models: Samsung update policy by model.

Latest firmware by region (CSC)

Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.

CSCRegionLatest buildAndroidReleasedBuilds
ACRGhanaF966BXXUDCZJBAndroid 17Nov 3, 202619
AFGAfghanistanF966BXXS8AZC2Android 16Mar 23, 202610
AFRAfricaF966BXXUDCZJBAndroid 17Nov 3, 202619
AROArgentinaF966BXXUDCZJBAndroid 17Nov 12, 202619
BOGFrance (Bouygues)F966BXXUDCZJBAndroid 17Nov 3, 202619
CAUCaucasusF966BXXUDCZJBAndroid 17Nov 3, 202619
CDRDominican RepublicF966BXXSDCZJ1Android 17Oct 28, 202618
CGUGuatemala (Claro)F966BXXSDCZJ1Android 17Oct 28, 202618
CHOChileF966BXXUDCZJBAndroid 17Nov 5, 202619
COMColombia (Claro)F966BXXUCCZIHAndroid 17Oct 28, 202617
COOColombiaF966BXXUDCZJBAndroid 17Nov 5, 202619
CRCCosta RicaF966BXXSDCZJ1Android 17Oct 28, 202618
CTIArgentina (Claro)F966BXXUDCZJBAndroid 17Nov 12, 202619
DKRSenegalF966BXXUDCZJBAndroid 17Nov 3, 202619
DORDominican RepublicF966BXXSDCZJ1Android 17Oct 28, 202618
EBEEcuadorF966BXXSDCZJ1Android 17Oct 22, 202618
ECOEcuadorF966BXXSDCZJ1Android 17Oct 22, 202618
ECTNigeriaF966BXXUDCZJBAndroid 17Nov 3, 202619
EGYEgyptF966BXXUABZF1Android 16Jun 21, 202614
EUXEurope (Multi-CSC)F966BXXUDCZJBAndroid 17Nov 3, 202625
EUYEurope (Multi-CSC)F966BXXUDCZJBAndroid 17Nov 2, 202619
GLBPhilippines (Globe)F966BXXUDCZJBAndroid 17Nov 3, 202619
GLONigeria (Glo)F966BXXSDCZJ1Android 17Oct 28, 202618
GTOGuatemalaF966BXXUDCZJBAndroid 17Nov 5, 202619
ILOIsraelF966BXXUDCZJBAndroid 17Nov 3, 202619
INSIndiaF966BXXUDCZJBAndroid 17Nov 3, 202622
KSASaudi ArabiaF966BXXUDCZJBAndroid 17Nov 3, 202619
LYSLibyaF966BXXUABZF1Android 16Jun 21, 202614
MEOPortugal (MEO)F966BXXUDCZJBAndroid 17Nov 3, 202619
MIDMiddle EastF966BXXUDCZJBAndroid 17Nov 3, 202619
MM1Singapore (M1)F966BXXUDCZJBAndroid 17Nov 3, 202619
MOBAustria (A1)F966BXXUDCZJBAndroid 17Nov 3, 202619
MOTSlovenia (Telekom)F966BXXUDCZJBAndroid 17Nov 3, 202619
MSRSerbiaF966BXXUDCZJBAndroid 17Nov 3, 202619
MWDMoroccoF966BXXS8AZC2Android 16Mar 23, 202610
MXOMexicoF966BXXSDCZJ1Android 17Oct 22, 202618
PAKPakistanF966BXXS8AZC2Android 16Mar 23, 202610
PEOPeruF966BXXUDCZJBAndroid 17Nov 12, 202619
PETPeru (Movistar)F966BXXUDCZJBAndroid 17Nov 12, 202619
PGUGuatemalaF966BXXSDCZJ1Android 17Oct 28, 202618
PKDPakistanF966BXXS8AZC2Android 16Mar 23, 202610
PLSPoland (Plus)F966BXXUDCZJBAndroid 17Nov 3, 202619
PRTPoland (Play)F966BXXUDCZJBAndroid 17Nov 3, 202619
PSNArgentina (Personal)F966BXXUDCZJBAndroid 17Nov 12, 202619
SEKUkraineF966BXXUDCZJBAndroid 17Nov 3, 202619
SFRFrance (SFR)F966BXXUDCZJBAndroid 17Nov 3, 202619
SIMSlovenia (A1)F966BXXUDCZJBAndroid 17Nov 3, 202619
SINSingapore (Singtel)F966BXXUDCZJBAndroid 17Nov 3, 202619
SKZKazakhstanF966BXXUDCZJBAndroid 17Nov 3, 202619
STHSingapore (StarHub)F966BXXUDCZJBAndroid 17Nov 3, 202619
SWCSwitzerlandF966BXXUDCZJBAndroid 17Nov 3, 202619
TCEMexico (Telcel)F966BXXSDCZJ1Android 17Oct 22, 202618
TGPParaguayF966BXXSDCZJ1Android 17Oct 28, 202618
THLThailandF966BXXUDCZJBAndroid 17Nov 3, 202619
TOPSerbia/MontenegroF966BXXUDCZJBAndroid 17Nov 3, 202619
TUNTunisiaF966BXXUABZF1Android 16Jun 21, 202614
TURTurkeyF966BXXUDCZJBAndroid 17Nov 3, 202619
UFNArgentina (Movistar)F966BXXUDCZJBAndroid 17Nov 12, 202619
UPOUruguayF966BXXSDCZJ1Android 17Oct 28, 202618
UYOUruguayF966BXXSDCZJ1Android 17Oct 22, 202618
VIPCroatia (A1)F966BXXUDCZJBAndroid 17Nov 3, 202619
XFASouth AfricaF966BXXUDCZJBAndroid 17Nov 3, 202619
XFVSouth Africa (Vodacom)F966BXXUDCZJBAndroid 17Nov 3, 202619
XIDIndonesiaF966BXXUDCZJBAndroid 17Nov 3, 202620
XMEMalaysiaF966BXXUDCZJBAndroid 17Nov 3, 202619
XNZNew ZealandF966BXXUDCZJBAndroid 17Nov 3, 202619
XSAAustraliaF966BXXUDCZJBAndroid 17Nov 4, 202619
XSGUnited Arab EmiratesF966BXXUDCZJBAndroid 17Nov 3, 202619
XSPSingaporeF966BXXUDCZJBAndroid 17Nov 3, 202619
XTCPhilippinesF966BXXUDCZJBAndroid 17Nov 3, 202619
XXVVietnamF966BXXUDCZJBAndroid 17Nov 3, 202619
ZTABrazil (Claro)F966BXXUDCZJBAndroid 17Nov 12, 202619
ZTMBrazil (TIM)F966BXXUDCZJBAndroid 17Nov 12, 202619
ZTOBrazilF966BXXUDCZJBAndroid 17Nov 12, 202619
ZVVBrazil (Vivo)F966BXXUDCZJBAndroid 17Nov 12, 202619

Firmware history (20 builds)

Every stable build (PDA version) Samsung has published for the SM-F966B, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).

Build (PDA)ReleasedAndroidTypeBitRegionsFile
F966BXXUDCZJBNov 2, 2026Android 17Feature1354on server
F966BXXSDCZJ1Oct 18, 2026Android 17Security1367on server
F966BXXUCCZIHOct 5, 2026Android 17Feature1268on server
F966BXXSCBZH3Aug 31, 2026Android 16Security1268on server
F966BXXSBBZG3Jul 19, 2026Android 16Security1168on server
F966BXXSABZF4Jul 1, 2026Android 16Security101on server
F966BXXUABZF1Jun 15, 2026Android 16Feature1071on server
F966BXXS9BZE2May 19, 2026Android 16Security971on server
F966BXXU9BZDPMay 10, 2026Android 16Feature971on server
F966BXXS9AZC8Apr 12, 2026Android 16Security971on server
F966BXXS8AZC2Mar 22, 2026Android 16Security875on server
F966BXXS8AZB6Feb 25, 2026Android 16Security875on server
F966BXXS7AZA1Jan 18, 2026Android 16Security775on server
F966BXXS6AYKFDec 10, 2025Android 16Security675on server
F966BXXU6AYK9Nov 23, 2025Android 16Feature675on server
F966BXXS5AYJ3Oct 26, 2025Android 16Security575on server
F966BXXU4AYI1Sep 14, 2025Android 16Feature475on server
F966BXXS3AYH1Aug 20, 2025Android 16Security375on server
F966BXXS2AYGGJul 30, 2025Android 16Security275on server
F966BXXU1AYFJJul 9, 2025Android 16Feature175on server

Beta and test builds

Samsung's servers also list 7 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

BuildListedFile
F966BXXUCZZIFSep 17, 2026pulled
F966BXXUCZZI6Sep 7, 2026pulled
F966BXXUCZZHPSep 3, 2026pulled
F966BXXU9ZZDDApr 20, 2026pulled
F966BXXU9ZZD3Apr 12, 2026pulled
F966BXXU8ZZCDMar 25, 2026pulled
F966BXXU8ZZC5Mar 11, 2026pulled

How to download SM-F966B firmware

We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:

samloader download -m SM-F966B -r EUX

Replace EUX with your region code. Step-by-step instructions, including a graphical alternative: How to download Samsung firmware.

Changelog and security patch level

Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-F966B / EUX release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).