S918U1UES7FZE3 – Galaxy S23 Ultra firmware

Build S918U1UES7FZE3 is a security update for the Galaxy S23 Ultra (SM-S918U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 1, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 7, so downgrading to the previous build S918U1UEU7FZE2 is still possible. Samsung still serves this file.

Model
SM-S918U1
Android
Android 16
Type
Security
Bootloader bit
7
First released
Jun 1, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received S918U1UES7FZE3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
AIOUSA (Cricket)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
ATTUSA (AT&T)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
CCTUSA (Comcast)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
DSAUSAJun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
DSHUSAJun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
LRAUSA (Bluegrass)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
TFNUSA (TracFone)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
TMBUSA (T-Mobile)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
TMKUSA (MetroPCS)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
USCUSA (US Cellular)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
VZWUSA (Verizon)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
XAAUSA (unlocked)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3
XARUSA (Cellular South)Jun 1, 2026day 0S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3

Download and release notes

samloader download -m SM-S918U1 -r XAA -v S918U1UES7FZE3/S918U1OYM7FZE3/S918U1UES7FZE3

Samsung's release notes and security patch level for this update: SM-S918U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode S918U1UES7FZE3.