S948BXXS4AZHL – Galaxy S26 Ultra firmware

Build S948BXXS4AZHL is a security update for the Galaxy S26 Ultra (SM-S948B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 30, 2026 (method) and has reached 45 regions so far. It keeps bootloader bit 4, so downgrading to the previous build S948BXXS4AZHM is still possible. Samsung still serves this file.

Model
SM-S948B
Android
Android 16
Type
Security
Bootloader bit
4
First released
Aug 30, 2026
Regions
45

Rollout timeline by region

The date each region code (CSC) first received S948BXXS4AZHL, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AFRAfricaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
BKDBangladeshAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
DKRSenegalAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
ECTNigeriaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
INSIndiaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
NPBNepalAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SLKSri LankaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XFASouth AfricaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XFVSouth Africa (Vodacom)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
ACRGhanaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
AFGAfghanistanAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
BOGFrance (Bouygues)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
EGYEgyptAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
EUXEurope (Multi-CSC)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
EUYEurope (Multi-CSC)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
GLBPhilippines (Globe)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
ILOIsraelAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
KSASaudi ArabiaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
LYSLibyaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
MIDMiddle EastAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
MM1Singapore (M1)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
MOBAustria (A1)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
MWDMoroccoAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
PKDPakistanAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
PLSPoland (Plus)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
PRTPoland (Play)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SFRFrance (SFR)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SIMSlovenia (A1)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SINSingapore (Singtel)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
STHSingapore (StarHub)Aug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SWCSwitzerlandAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
THLThailandAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
TUNTunisiaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
TURTurkeyAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XIDIndonesiaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XMEMalaysiaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XNZNew ZealandAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XSAAustraliaAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XSGUnited Arab EmiratesAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XSPSingaporeAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XTCPhilippinesAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
XXVVietnamAug 30, 2026day 0S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
CAUCaucasusSep 1, 2026+2 daysS948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SERRussiaSep 1, 2026+2 daysS948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL
SKZKazakhstanSep 1, 2026+2 daysS948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL

Download and release notes

samloader download -m SM-S948B -r EUX -v S948BXXS4AZHL/S948BOXM4AZHL/S948BXXS4AZHL

Samsung's release notes and security patch level for this update: SM-S948B / EUX on doc.samsungmobile.com. What each part of the build number means: decode S948BXXS4AZHL.