F976BXXS2AZH7 – Galaxy Z Fold8 Ultra firmware

Build F976BXXS2AZH7 is a security update for the Galaxy Z Fold8 Ultra (SM-F976B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Aug 12, 2026 (method) and has reached 42 regions so far. It raises the bootloader bit from 1 to 2: once installed, the device no longer accepts firmware with bit 1 or lower, so a downgrade to F976BXXU1AZGI is blocked. Samsung still serves this file.

Model
SM-F976B
Android
Android 17
Type
Security
Bootloader bit
2
First released
Aug 12, 2026
Regions
42

Rollout timeline by region

The date each region code (CSC) first received F976BXXS2AZH7, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
DORDominican RepublicAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
ZTABrazil (Claro)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
ZTMBrazil (TIM)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
ZTOBrazilAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
ZVVBrazil (Vivo)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
CDRDominican RepublicAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
CGUGuatemala (Claro)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
ECOEcuadorAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
GLONigeria (Glo)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
GTOGuatemalaAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
MXOMexicoAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
PGUGuatemalaAug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
TCEMexico (Telcel)Aug 12, 2026day 0F976BXXS2AZH7/F976BOWO2AZH7/F976BXXS2AZH7
GLBPhilippines (Globe)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
INSIndiaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
MM1Singapore (M1)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
SINSingapore (Singtel)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
STHSingapore (StarHub)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
THLThailandAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XFVSouth Africa (Vodacom)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XIDIndonesiaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XMEMalaysiaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XNZNew ZealandAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XSGUnited Arab EmiratesAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XSPSingaporeAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XTCPhilippinesAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XXVVietnamAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
ACRGhanaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
CAUCaucasusAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
DKRSenegalAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
ECTNigeriaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
EUXEurope (Multi-CSC)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
EUYEurope (Multi-CSC)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
ILOIsraelAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
KSASaudi ArabiaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
PLSPoland (Plus)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
PRTPoland (Play)Aug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
SEKUkraineAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
SKZKazakhstanAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
TURTurkeyAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XFASouth AfricaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7
XSAAustraliaAug 12, 2026day 0F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7

Download and release notes

samloader download -m SM-F976B -r EUX -v F976BXXS2AZH7/F976BOXM2AZH7/F976BXXS2AZH7

Samsung's release notes and security patch level for this update: SM-F976B / EUX on doc.samsungmobile.com. What each part of the build number means: decode F976BXXS2AZH7.