F731U1UES8GZG3 – Galaxy Z Flip5 firmware

Build F731U1UES8GZG3 is a security update for the Galaxy Z Flip5 (SM-F731U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 30, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 8, so downgrading to the previous build F731U1UES8GZF1 is still possible. Samsung still serves this file.

Model
SM-F731U1
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jul 30, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received F731U1UES8GZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
AIOUSA (Cricket)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
ATTUSA (AT&T)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
CCTUSA (Comcast)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
DSAUSAJul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
DSHUSAJul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
LRAUSA (Bluegrass)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
TFNUSA (TracFone)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
TMBUSA (T-Mobile)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
TMKUSA (MetroPCS)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
USCUSA (US Cellular)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
VZWUSA (Verizon)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
XAAUSA (unlocked)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3
XARUSA (Cellular South)Jul 30, 2026day 0F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3

Download and release notes

samloader download -m SM-F731U1 -r XAA -v F731U1UES8GZG3/F731U1OYM8GZG3/F731U1UES8GZG3

Samsung's release notes and security patch level for this update: SM-F731U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F731U1UES8GZG3.