S948USQS4AZHL – Galaxy S26 Ultra firmware

Build S948USQS4AZHL is a security update for the Galaxy S26 Ultra (SM-S948U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 30, 2026 (method) and has reached 9 regions so far. It keeps bootloader bit 4, so downgrading to the previous build S948USQS4AZG3 is still possible. Samsung still serves this file.

Model
SM-S948U
Android
Android 16
Type
Security
Bootloader bit
4
First released
Aug 30, 2026
Regions
9

Rollout timeline by region

The date each region code (CSC) first received S948USQS4AZHL, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
VZWUSA (Verizon)Aug 30, 2026day 0S948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
CCTUSA (Comcast)Aug 30, 2026day 0S948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
AIOUSA (Cricket)Aug 30, 2026day 0S948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
ATTUSA (AT&T)Aug 30, 2026day 0S948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
TMKUSA (MetroPCS)Aug 31, 2026+1 dayS948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
TMBUSA (T-Mobile)Aug 31, 2026+1 dayS948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
USCUSA (US Cellular)Aug 31, 2026+1 dayS948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
DSHUSASep 1, 2026+2 daysS948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL
DSAUSASep 1, 2026+2 daysS948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL

Download and release notes

samloader download -m SM-S948U -r VZW -v S948USQS4AZHL/S948UOYN4AZHL/S948USQS4AZHL

Samsung's release notes and security patch level for this update: SM-S948U / VZW on doc.samsungmobile.com. What each part of the build number means: decode S948USQS4AZHL.