Galaxy S23 Ultra SM-S918B firmware

The latest stable build is S918BXXUAGZIF (Android 17, feature update), first released on Oct 19, 2026 – 18 days ago. Samsung has published 88 stable builds for this model since Feb 2, 2023: 62 security and 26 feature updates, from Android 13 to Android 17. The current bootloader (binary) version is 10. A device on bit 10 only accepts firmware with bit 10 or higher – see downgrading and the bootloader bit.

Latest build
S918BXXUAGZIF
Released
Oct 19, 2026
Android
Android 17
Bootloader bit
10
Regions
99
Stable builds
88

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
ACRGhanaS918BXXUAGZIFAndroid 17Oct 19, 202652
AFGAfghanistanS918BXXUAGZIFAndroid 17Oct 19, 202652
AFRAfricaS918BXXUAGZIFAndroid 17Oct 19, 202652
AROArgentinaS918BXXUAGZIFAndroid 17Nov 4, 202648
BKDBangladeshS918BXXUAGZIFAndroid 17Oct 22, 202652
BOGFrance (Bouygues)S918BXXUAGZIFAndroid 17Oct 19, 202654
BTBUnited Kingdom (BT)S918BXXUAGZIFAndroid 17Oct 19, 202654
BVOBoliviaS918BXXUAGZIFAndroid 17Oct 22, 202649
CAUCaucasusS918BXXUAGZIFAndroid 17Oct 19, 202652
CDRDominican RepublicS918BXXSAFZI1Android 16Sep 29, 202647
CGUGuatemala (Claro)S918BXXSAFZI1Android 16Sep 29, 202646
CHEChile (Entel)S918BXXSAFZI1Android 16Oct 1, 202646
CHLChile (Claro)S918BXXSAFZI1Android 16Oct 1, 202646
CHOChileS918BXXSAFZI1Android 16Oct 1, 202646
CHTChile (Movistar)S918BXXSAFZI1Android 16Oct 1, 202646
CHXChileS918BXXSAFZI1Android 16Oct 1, 202646
COBColombia (Movistar)S918BXXUAGZIFAndroid 17Oct 28, 202648
COLColombiaS918BXXUAGZIFAndroid 17Oct 28, 202648
COMColombia (Claro)S918BXXUAGZIFAndroid 17Nov 4, 202649
COOColombiaS918BXXUAGZIFAndroid 17Oct 28, 202648
CRCCosta RicaS918BXXSAFZI1Android 16Sep 29, 202647
CTIArgentina (Claro)S918BXXUAGZIFAndroid 17Nov 4, 202648
DKRSenegalS918BXXUAGZIFAndroid 17Oct 19, 202652
DORDominican RepublicS918BXXSAFZI1Android 16Sep 29, 202646
EBEEcuadorS918BXXSAFZI1Android 16Sep 29, 202644
ECOEcuadorS918BXXSAFZI1Android 16Sep 29, 202644
ECTNigeriaS918BXXUAGZIFAndroid 17Oct 19, 202652
EGYEgyptS918BXXUAGZIFAndroid 17Oct 19, 202652
EUXEurope (Multi-CSC)S918BXXUAGZIFAndroid 17Oct 19, 202658
EUYEurope (Multi-CSC)S918BXXUAGZIFAndroid 17Oct 19, 202654
EVRUnited Kingdom (EE)S918BXXUAGZIFAndroid 17Oct 19, 202654
GLBPhilippines (Globe)S918BXXUAGZIFAndroid 17Oct 19, 202652
GLONigeria (Glo)S918BXXSAFZI1Android 16Sep 29, 202646
GTOGuatemalaS918BXXUAGZIFAndroid 17Oct 22, 202648
ILOIsraelS918BXXUAGZIFAndroid 17Oct 19, 202652
INSIndiaS918BXXUAGZIFAndroid 17Oct 22, 202654
INUIndiaS918BXXS8DYG5Android 15Feb 19, 20261
IUSMexico (AT&T)S918BXXUAGZIFAndroid 17Oct 28, 202647
KSASaudi ArabiaS918BXXUAGZIFAndroid 17Oct 19, 202652
LYSLibyaS918BXXUAGZIFAndroid 17Oct 19, 202652
MEOPortugal (MEO)S918BXXUAGZIFAndroid 17Oct 19, 202654
MIDMiddle EastS918BXXUAGZIFAndroid 17Oct 19, 202652
MM1Singapore (M1)S918BXXUAGZIFAndroid 17Oct 19, 202652
MOBAustria (A1)S918BXXUAGZIFAndroid 17Oct 19, 202654
MOTSlovenia (Telekom)S918BXXUAGZIFAndroid 17Oct 19, 202654
MSRSerbiaS918BXXUAGZIFAndroid 17Oct 19, 202654
MWDMoroccoS918BXXUAGZIFAndroid 17Oct 19, 202652
MXOMexicoS918BXXUAGZIFAndroid 17Oct 28, 202647
NBSLatin America (open market)S918BXXSAFZI1Android 16Sep 29, 202646
O2CCzech Republic (O2)S918BXXUAGZIFAndroid 17Oct 19, 202654
OPSAustralia (Optus)S918BXXUAGZIFAndroid 17Oct 19, 202652
PEOPeruS918BXXSAFZI1Android 16Sep 29, 202646
PETPeru (Movistar)S918BXXSAFZI1Android 16Sep 29, 202646
PGUGuatemalaS918BXXSAFZI1Android 16Sep 29, 202647
PKDPakistanS918BXXUAGZIFAndroid 17Oct 19, 202652
PLSPoland (Plus)S918BXXUAGZIFAndroid 17Oct 19, 202654
PNTPanamaS918BXXSAFZI1Android 16Sep 29, 202646
PRTPoland (Play)S918BXXUAGZIFAndroid 17Oct 19, 202654
PSNArgentina (Personal)S918BXXUAGZIFAndroid 17Nov 4, 202648
SAMOceaniaS918BXXSAFZI1Android 16Sep 29, 202646
SEKUkraineS918BXXUAGZIFAndroid 17Oct 19, 202652
SERRussiaS918BXXUAGZIFAndroid 17Oct 19, 202652
SFRFrance (SFR)S918BXXUAGZIFAndroid 17Oct 19, 202654
SIMSlovenia (A1)S918BXXUAGZIFAndroid 17Oct 19, 202654
SINSingapore (Singtel)S918BXXUAGZIFAndroid 17Oct 19, 202652
SKZKazakhstanS918BXXUAGZIFAndroid 17Oct 19, 202652
SLKSri LankaS918BXXUAGZIFAndroid 17Oct 22, 202652
STHSingapore (StarHub)S918BXXUAGZIFAndroid 17Oct 19, 202652
SWCSwitzerlandS918BXXUAGZIFAndroid 17Oct 19, 202654
TCEMexico (Telcel)S918BXXUAGZIFAndroid 17Oct 28, 202647
TELAustralia (Telstra)S918BXXUAGZIFAndroid 17Oct 19, 202652
TGPParaguayS918BXXSAFZI1Android 16Sep 29, 202647
THLThailandS918BXXUAGZIFAndroid 17Oct 19, 202654
TIMItaly (TIM)S918BXXUAGZIFAndroid 17Oct 19, 202654
TMMMyanmarS918BXXUAGZIFAndroid 17Oct 28, 202647
TOPSerbia/MontenegroS918BXXUAGZIFAndroid 17Oct 19, 202654
TPAPanamaS918BXXUAGZIFAndroid 17Oct 20, 202649
TUNTunisiaS918BXXUAGZIFAndroid 17Oct 19, 202652
TURTurkeyS918BXXUAGZIFAndroid 17Oct 19, 202652
UFNArgentina (Movistar)S918BXXUAGZIFAndroid 17Nov 4, 202648
UPOUruguayS918BXXSAFZI1Android 16Sep 29, 202647
UYOUruguayS918BXXSAFZI1Android 16Sep 29, 202647
VAUAustralia (Vodafone)S918BXXUAGZIFAndroid 17Oct 19, 202652
VIPCroatia (A1)S918BXXUAGZIFAndroid 17Oct 19, 202654
XFASouth AfricaS918BXXUAGZIFAndroid 17Oct 19, 202652
XFESouth AfricaS918BXXUAGZIFAndroid 17Oct 19, 202652
XFVSouth Africa (Vodacom)S918BXXUAGZIFAndroid 17Oct 19, 202652
XIDIndonesiaS918BXXUAGZIFAndroid 17Oct 19, 202652
XMEMalaysiaS918BXXUAGZIFAndroid 17Oct 19, 202652
XNZNew ZealandS918BXXUAGZIFAndroid 17Oct 22, 202652
XSAAustraliaS918BXXUAGZIFAndroid 17Oct 19, 202652
XSGUnited Arab EmiratesS918BXXUAGZIFAndroid 17Oct 19, 202653
XSPSingaporeS918BXXUAGZIFAndroid 17Oct 19, 202652
XTCPhilippinesS918BXXUAGZIFAndroid 17Oct 19, 202652
XXVVietnamS918BXXUAGZIFAndroid 17Oct 19, 202652
ZTABrazil (Claro)S918BXXUAGZIFAndroid 17Oct 21, 202649
ZTMBrazil (TIM)S918BXXUAGZIFAndroid 17Oct 21, 202649
ZTOBrazilS918BXXUAGZIFAndroid 17Oct 21, 202649
ZVVBrazil (Vivo)S918BXXUAGZIFAndroid 17Oct 21, 202649

Firmware history (88 builds)

Every stable build (PDA version) Samsung has published for the SM-S918B, newest first. “” is the earliest date the build appeared on Samsung's servers in any region. “” means Samsung no longer serves the file for that build.

Build (PDA)ReleasedAndroidTypeBitRegionsFile
S918BXXUAGZIFOct 19, 2026Android 17Feature1077on server
S918BXXSAFZI1Sep 28, 2026Android 16Security1098on server
S918BXXSAFZH3Sep 2, 2026Android 16Security1098on server
S918BXXSAFZG1Jul 27, 2026Android 16Security1098on server
S918BXXSAFZF5Jun 29, 2026Android 16Security1098on server
S918BXXSAFZE1May 28, 2026Android 16Security1098on server
S918BXXU9FZDPMay 21, 2026Android 16Feature998on server
S918BXXS9EZCIApr 13, 2026Android 16Security998on server
S918BXXS9EZC1Mar 30, 2026Android 16Security998on server
S918BXXS9EZB6Mar 3, 2026Android 16Security998on server
S918BXXS8EZA1Jan 26, 2026Android 16Security898on server
S918BXXS8EYK5Dec 15, 2025Android 16Security898on server
S918BXXS8EYK2Nov 20, 2025Android 16Security898on server
S918BXXS8EYJ3Oct 28, 2025Android 16Security898on server
S918BXXU8EYI5Oct 2, 2025Android 16Feature868on server
S918BXXS8DYI4Sep 29, 2025Android 15Security840on server
S918BXXS8DYI3Sep 9, 2025Android 15Security858on server
S918BXXS8DYG6Aug 21, 2025Android 15Security840on server
S918BXXS8DYH1Aug 19, 2025Android 15Security81on server
S918BXXS8DYG5Aug 18, 2025Android 15Security858on server
S918BXXS8DYG2Jul 22, 2025Android 15Security840on server
S918BXXS8DYG1Jul 21, 2025Android 15Security858on server
S918BXXS8DYF2Jun 25, 2025Android 15Security840on server
S918BXXS8DYF1Jun 23, 2025Android 15Security858on server
S918BXXS8DYDCMay 30, 2025Android 15Security840on server
S918BXXS8DYDBMay 26, 2025Android 15Security858on server
S918BXXU8DYDAApr 29, 2025Android 15Feature840on server
S918BXXU8DYD9Apr 28, 2025Android 15Feature858on server
S918BXXS8CYBEMar 20, 2025Android 14Security840on server
S918BXXS8CYBDMar 18, 2025Android 14Security858on server
S918BXXU8CYB6Mar 7, 2025Android 14Feature840on server
S918BXXU8CYB4Feb 24, 2025Android 14Feature858on server
S918BXXS7CXL2Jan 14, 2025Android 14Security796on server
S918BXXS7CXK6Dec 16, 2024Android 14Security796on server
S918BXXU7CXK4Nov 29, 2024Android 14Feature796on server
S918BXXS6CXI4Oct 14, 2024Android 14Security698on server
S918BXXU6CXI1Oct 8, 2024Android 14Feature698on server
S918BXXS6CXHAOct 8, 2024Android 14Security658on server
S918BXXU6CXH7Sep 16, 2024Android 14Feature669on server
S918BXXS6CXG9Aug 12, 2024Android 14Security61on server
S918BXXS6CXGAAug 12, 2024Android 14Security618on server
S918BXXS6CXG8Aug 12, 2024Android 14Security679on server
S918BXXS6CXFDJul 15, 2024Android 14Security61on server
S918BXXS6CXFEJul 15, 2024Android 14Security618on server
S918BXXS6CXFCJul 15, 2024Android 14Security679on server
S918BXXS5CXE8Jun 17, 2024Android 14Security51on server
S918BXXS5CXE9Jun 17, 2024Android 14Security518on server
S918BXXS5CXE7Jun 17, 2024Android 14Security579on server
S918BXXU5CXE3Jun 11, 2024Android 14Feature518on server
S918BXXU5CXE1May 24, 2024Android 14Feature51on server
S918BXXS5CXDFMay 17, 2024Android 14Security518on server
S918BXXS5CXDEMay 17, 2024Android 14Security580on server
S918BXXS4CXD8Apr 30, 2024Android 14Security41on server
S918BXXU3CXD3Apr 23, 2024Android 14Feature318on server
S918BXXS3CXD2Apr 11, 2024Android 14Security398on server
S918BXXU3CXCFMar 28, 2024Android 14Feature398on server
S918BXXS3BXC1Mar 20, 2024Android 14Security38on server
S918BXXS3BXBDMar 12, 2024Android 14Security390on server
S918BXXS3BXB2Feb 20, 2024Android 14Security38on server
S918BXXS3BXADFeb 13, 2024Android 14Security390on server
S918BXXS3BXA6Jan 27, 2024Android 14Security38on server
S918BXXS3BWL3Jan 12, 2024Android 14Security390on server
S918BXXS3BWL2Dec 23, 2023Android 14Security38on server
S918BXXU3BWK8Dec 13, 2023Android 14Feature38on server
S918BXXS3BWKCDec 11, 2023Android 14Security390on server
S918BXXS3BWK5Nov 13, 2023Android 14Security390on server
S918BXXU3BWJMOct 30, 2023Android 14Feature390on server
S918BXXS3AWJFOct 26, 2023Android 13Security39on server
S918BXXS3AWIGOct 11, 2023Android 13Security33on server
S918BXXS3AWIFOct 11, 2023Android 13Security386on server
S918BXXS3AWI3Sep 21, 2023Android 13Security39on server
S918BXXS3AWI1Sep 15, 2023Android 13Security33on server
S918BXXS3AWHRSep 15, 2023Android 13Security386on server
S918BXXU3AWH7Aug 31, 2023Android 13Feature39on server
S918BXXU3AWH3Aug 17, 2023Android 13Feature33on server
S918BXXU3AWGJAug 7, 2023Android 13Feature386on server
S918BXXS3AWF9Jul 13, 2023Android 13Security33on server
S918BXXS3AWF7Jul 10, 2023Android 13Security395on server
S918BXXU2AWF3Jun 29, 2023Android 13Feature23on server
S918BXXU2AWF1Jun 16, 2023Android 13Feature295on server
S918BXXS2AWEAMay 26, 2023Android 13Security21on server
S918BXXS1AWD1May 2, 2023Android 13Security158on server
S918BXXU1AWCBApr 24, 2023Android 13Feature15on server
S918BXXU1AWC8Apr 3, 2023Android 13Feature193on server
S918BXXS1AWBMMar 8, 2023Android 13Security158on server
S918BXXU1AWBDFeb 20, 2023Android 13Feature198on server
S918BXXU1AVKTFeb 16, 2023Android 13Feature14on server
S918BXXU1AWA6Feb 2, 2023Android 13Feature198on server

Beta and test builds

Samsung's servers also list 5 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

BuildListedFile
S918BXXUAZZI8Sep 17, 2026pulled
S918BXXUAZZHLSep 4, 2026pulled
S918BXXU8ZYHBSep 1, 2025pulled
S918BXXU8ZYCEMar 26, 2025pulled
S918BXXU8ZYC3Mar 13, 2025pulled

How to download SM-S918B 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-S918B -r ACR

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