S918BXXUAGZIF – Galaxy S23 Ultra firmware

Build S918BXXUAGZIF is a feature update for the Galaxy S23 Ultra (SM-S918B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 18, 2026 (method) and has reached 77 regions so far. It keeps bootloader bit 10, so downgrading to the previous build S918BXXSAFZI1 is still possible. Samsung still serves this file.

Model
SM-S918B
Android
Android 17
Type
Feature
Bootloader bit
10
First released
Oct 18, 2026
Regions
77

Not yet released in 22 regions that are still on an older build: CDR, CGU, CHE, CHL, CHO, CHT, CHX, CRC, DOR, EBE, ECO, GLO, INU, NBS and 8 more.

Rollout timeline by region

The date each region code (CSC) first received S918BXXUAGZIF, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
BTBUnited Kingdom (BT)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
EVRUnited Kingdom (EE)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MEOPortugal (MEO)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MOBAustria (A1)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MOTSlovenia (Telekom)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MSRSerbiaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
O2CCzech Republic (O2)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
PLSPoland (Plus)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
PRTPoland (Play)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SFRFrance (SFR)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SWCSwitzerlandOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TIMItaly (TIM)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TOPSerbia/MontenegroOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
EUXEurope (Multi-CSC)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
EUYEurope (Multi-CSC)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SIMSlovenia (A1)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
VIPCroatia (A1)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
CAUCaucasusOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SEKUkraineOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SERRussiaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SKZKazakhstanOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
GLBPhilippines (Globe)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MM1Singapore (M1)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
OPSAustralia (Optus)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SINSingapore (Singtel)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
STHSingapore (StarHub)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TELAustralia (Telstra)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
THLThailandOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
VAUAustralia (Vodafone)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XMEMalaysiaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XSAAustraliaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XSPSingaporeOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XTCPhilippinesOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XXVVietnamOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XIDIndonesiaOct 18, 2026day 0S918BXXUAGZIF/S918BOLEAGZIF/S918BXXUAGZIF
ACRGhanaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
AFGAfghanistanOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
AFRAfricaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
DKRSenegalOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
ECTNigeriaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
EGYEgyptOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
ILOIsraelOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
KSASaudi ArabiaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
LYSLibyaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MIDMiddle EastOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
MWDMoroccoOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
PKDPakistanOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TUNTunisiaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TURTurkeyOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XFASouth AfricaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XFESouth AfricaOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XFVSouth Africa (Vodacom)Oct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XSGUnited Arab EmiratesOct 18, 2026day 0S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
TPAPanamaOct 19, 2026+1 dayS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
ZTABrazil (Claro)Oct 20, 2026+2 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
ZTMBrazil (TIM)Oct 20, 2026+2 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
ZTOBrazilOct 20, 2026+2 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
ZVVBrazil (Vivo)Oct 20, 2026+2 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
BKDBangladeshOct 21, 2026+3 daysS918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
INSIndiaOct 21, 2026+3 daysS918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
SLKSri LankaOct 21, 2026+3 daysS918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
XNZNew ZealandOct 21, 2026+3 daysS918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF
GTOGuatemalaOct 22, 2026+4 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
BVOBoliviaOct 22, 2026+4 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
IUSMexico (AT&T)Oct 27, 2026+9 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
MXOMexicoOct 27, 2026+9 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
TCEMexico (Telcel)Oct 27, 2026+9 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
TMMMyanmarOct 27, 2026+9 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
COBColombia (Movistar)Oct 28, 2026+10 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
COLColombiaOct 28, 2026+10 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
COOColombiaOct 28, 2026+10 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
AROArgentinaNov 3, 2026+16 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
COMColombia (Claro)Nov 3, 2026+16 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
CTIArgentina (Claro)Nov 3, 2026+16 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
PSNArgentina (Personal)Nov 3, 2026+16 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF
UFNArgentina (Movistar)Nov 3, 2026+16 daysS918BXXUAGZIF/S918BOWOAGZIF/S918BXXUAGZIF

Download and release notes

samloader download -m SM-S918B -r EUX -v S918BXXUAGZIF/S918BOXMAGZIF/S918BXXUAGZIF

Samsung's release notes and security patch level for this update: SM-S918B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S918BXXUAGZIF.