F971BXXS3AZIJ – Galaxy Z Fold8 firmware

Build F971BXXS3AZIJ is a security update for the Galaxy Z Fold8 (SM-F971B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 5, 2026 (method) and has reached 42 regions so far. It keeps bootloader bit 3, so downgrading to the previous build F971BXXU3AZI5 is still possible. Samsung still serves this file.

Model
SM-F971B
Android
Android 17
Type
Security
Bootloader bit
3
First released
Oct 5, 2026
Regions
42

Rollout timeline by region

The date each region code (CSC) first received F971BXXS3AZIJ, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XSAAustraliaOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
EUXEurope (Multi-CSC)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
EUYEurope (Multi-CSC)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
PLSPoland (Plus)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
PRTPoland (Play)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
ACRGhanaOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
CAUCaucasusOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
DKRSenegalOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
ECTNigeriaOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
ILOIsraelOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
KSASaudi ArabiaOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
SEKUkraineOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
SKZKazakhstanOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
TURTurkeyOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XFASouth AfricaOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XFVSouth Africa (Vodacom)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XSGUnited Arab EmiratesOct 5, 2026day 0F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
CDRDominican RepublicOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
CGUGuatemala (Claro)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
DORDominican RepublicOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
ECOEcuadorOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
GLONigeria (Glo)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
GTOGuatemalaOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
MXOMexicoOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
PGUGuatemalaOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
TCEMexico (Telcel)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
ZTABrazil (Claro)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
ZTMBrazil (TIM)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
ZTOBrazilOct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
ZVVBrazil (Vivo)Oct 5, 2026day 0F971BXXS3AZIJ/F971BOWO3AZIJ/F971BXXU3AZI5
INSIndiaOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
GLBPhilippines (Globe)Oct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
MM1Singapore (M1)Oct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
SINSingapore (Singtel)Oct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
STHSingapore (StarHub)Oct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
THLThailandOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XIDIndonesiaOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XMEMalaysiaOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XNZNew ZealandOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XSPSingaporeOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XTCPhilippinesOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5
XXVVietnamOct 6, 2026+1 dayF971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5

Download and release notes

samloader download -m SM-F971B -r EUX -v F971BXXS3AZIJ/F971BOXM3AZIJ/F971BXXU3AZI5

Samsung's release notes and security patch level for this update: SM-F971B / EUX on doc.samsungmobile.com. What each part of the build number means: decode F971BXXS3AZIJ.