F731U1UES8GZF1 – Galaxy Z Flip5 firmware

Build F731U1UES8GZF1 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 Jun 28, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 8, so downgrading to the previous build F731U1UES8GZE8 is still possible. Samsung still serves this file.

Model
SM-F731U1
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jun 28, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received F731U1UES8GZF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
AIOUSA (Cricket)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
ATTUSA (AT&T)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
CCTUSA (Comcast)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
DSAUSAJun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
DSHUSAJun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
LRAUSA (Bluegrass)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
TFNUSA (TracFone)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
TMBUSA (T-Mobile)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
TMKUSA (MetroPCS)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
USCUSA (US Cellular)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
VZWUSA (Verizon)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
XAAUSA (unlocked)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1
XARUSA (Cellular South)Jun 28, 2026day 0F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1

Download and release notes

samloader download -m SM-F731U1 -r XAA -v F731U1UES8GZF1/F731U1OYM8GZF1/F731U1UES8GZF1

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 F731U1UES8GZF1.