F731USQS8GZH5 – Galaxy Z Flip5 firmware

Build F731USQS8GZH5 is a security update for the Galaxy Z Flip5 (SM-F731U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 2, 2026 (method) and has reached 7 regions so far. It keeps bootloader bit 8, so downgrading to the previous build F731USQS8GZG3 is still possible. Samsung still serves this file.

Model
SM-F731U
Android
Android 16
Type
Security
Bootloader bit
8
First released
Sep 2, 2026
Regions
7

Rollout timeline by region

The date each region code (CSC) first received F731USQS8GZH5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Sep 2, 2026day 0F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
TMKUSA (MetroPCS)Sep 2, 2026day 0F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
USCUSA (US Cellular)Sep 2, 2026day 0F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
VZWUSA (Verizon)Sep 2, 2026day 0F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
XAAUSA (unlocked)Sep 2, 2026day 0F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
CCTUSA (Comcast)Sep 3, 2026+1 dayF731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5
ATTUSA (AT&T)Sep 7, 2026+5 daysF731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5

Download and release notes

samloader download -m SM-F731U -r XAA -v F731USQS8GZH5/F731UOYN8GZH5/F731USQS8GZH5

Samsung's release notes and security patch level for this update: SM-F731U / XAA on doc.samsungmobile.com. What each part of the build number means: decode F731USQS8GZH5.