S948BXXS4AZHM – Galaxy S26 Ultra firmware

Build S948BXXS4AZHM 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 34 regions so far. It keeps bootloader bit 4, so downgrading to the previous build S948BXXS4AZG5 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
34

Rollout timeline by region

The date each region code (CSC) first received S948BXXS4AZHM, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BVOBoliviaAug 30, 2026day 0S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
GTOGuatemalaAug 30, 2026day 0S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
IUSMexico (AT&T)Aug 30, 2026day 0S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
MXOMexicoAug 30, 2026day 0S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
TCEMexico (Telcel)Aug 30, 2026day 0S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
UFNArgentina (Movistar)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
AROArgentinaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CTIArgentina (Claro)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
PSNArgentina (Personal)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
ZTOBrazilSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CDRDominican RepublicSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CGUGuatemala (Claro)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CHEChile (Entel)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CHLChile (Claro)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CHOChileSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CHTChile (Movistar)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
COBColombia (Movistar)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
COMColombia (Claro)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
COOColombiaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
CRCCosta RicaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
DORDominican RepublicSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
ECOEcuadorSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
GLONigeria (Glo)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
PGUGuatemalaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
SAMOceaniaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
TGPParaguaySep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
UPOUruguaySep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
ZTABrazil (Claro)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
ZTMBrazil (TIM)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
ZVVBrazil (Vivo)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
PEOPeruSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
PETPeru (Movistar)Sep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
PNTPanamaSep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM
UYOUruguaySep 1, 2026+2 daysS948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM

Download and release notes

samloader download -m SM-S948B -r BVO -v S948BXXS4AZHM/S948BOWO4AZHM/S948BXXS4AZHM

Samsung's release notes and security patch level for this update: SM-S948B / BVO on doc.samsungmobile.com. What each part of the build number means: decode S948BXXS4AZHM.