S721U1UESEEZJ1 – Galaxy S24 FE firmware

Build S721U1UESEEZJ1 is a security update for the Galaxy S24 FE (SM-S721U1) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 2, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 14, so downgrading to the previous build S721U1UEUEEZIF is still possible. Samsung still serves this file.

Model
SM-S721U1
Android
Android 17
Type
Security
Bootloader bit
14
First released
Nov 2, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received S721U1UESEEZJ1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
AIOUSA (Cricket)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
ATTUSA (AT&T)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
CCTUSA (Comcast)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
LRAUSA (Bluegrass)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
TFNUSA (TracFone)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
VZWUSA (Verizon)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
XARUSA (Cellular South)Nov 2, 2026day 0S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
DSAUSANov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
DSHUSANov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
TMBUSA (T-Mobile)Nov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
TMKUSA (MetroPCS)Nov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
USCUSA (US Cellular)Nov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1
XAAUSA (unlocked)Nov 11, 2026+9 daysS721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1

Download and release notes

samloader download -m SM-S721U1 -r XAA -v S721U1UESEEZJ1/S721U1OYMEEZJ1/S721U1UESEEZJ1

Samsung's release notes and security patch level for this update: SM-S721U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode S721U1UESEEZJ1.