F976BXXU3AZJ8 – Galaxy Z Fold8 Ultra firmware

Build F976BXXU3AZJ8 is a feature update for the Galaxy Z Fold8 Ultra (SM-F976B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 28, 2026 (method) and has reached 43 regions so far. It keeps bootloader bit 3, so downgrading to the previous build F976BXXS3AZIK is still possible. Samsung still serves this file.

Model
SM-F976B
Android
Android 17
Type
Feature
Bootloader bit
3
First released
Oct 28, 2026
Regions
43

Rollout timeline by region

The date each region code (CSC) first received F976BXXU3AZJ8, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
GTOGuatemalaOct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
MXOMexicoOct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
TCEMexico (Telcel)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
ZTABrazil (Claro)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
ZTMBrazil (TIM)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
ZTOBrazilOct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
ZVVBrazil (Vivo)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
GLBPhilippines (Globe)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
INSIndiaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
MM1Singapore (M1)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
SINSingapore (Singtel)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
STHSingapore (StarHub)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
THLThailandOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XIDIndonesiaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XMEMalaysiaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XSPSingaporeOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XTCPhilippinesOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XXVVietnamOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
ACRGhanaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
CAUCaucasusOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
DKRSenegalOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
ECTNigeriaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
EGYEgyptOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
EUXEurope (Multi-CSC)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
EUYEurope (Multi-CSC)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
ILOIsraelOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
KSASaudi ArabiaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
PLSPoland (Plus)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
PRTPoland (Play)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
SEKUkraineOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
SKZKazakhstanOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
TURTurkeyOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XFASouth AfricaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XFVSouth Africa (Vodacom)Oct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XSAAustraliaOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XSGUnited Arab EmiratesOct 28, 2026day 0F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
XNZNew ZealandNov 3, 2026+6 daysF976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8
PGUGuatemalaNov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
CDRDominican RepublicNov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
CGUGuatemala (Claro)Nov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
DORDominican RepublicNov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
ECOEcuadorNov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8
GLONigeria (Glo)Nov 8, 2026+11 daysF976BXXU3AZJ8/F976BOWO3AZJ8/F976BXXU3AZJ8

Download and release notes

samloader download -m SM-F976B -r EUX -v F976BXXU3AZJ8/F976BOXM3AZJ8/F976BXXU3AZJ8

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 F976BXXU3AZJ8.