S731USQS8BZF5 – Galaxy S25 FE firmware

Build S731USQS8BZF5 is a security update for the Galaxy S25 FE (SM-S731U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 14, 2026 (method) and has reached 10 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to S731USQS7BZF3 is blocked. Samsung still serves this file.

Model
SM-S731U
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jul 14, 2026
Regions
10

Rollout timeline by region

The date each region code (CSC) first received S731USQS8BZF5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jul 14, 2026day 0S731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
TMKUSA (MetroPCS)Jul 14, 2026day 0S731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
VZWUSA (Verizon)Jul 14, 2026day 0S731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
AIOUSA (Cricket)Jul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
CCTUSA (Comcast)Jul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
DSAUSAJul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
DSHUSAJul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
XAAUSA (unlocked)Jul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
ATTUSA (AT&T)Jul 15, 2026+1 dayS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5
USCUSA (US Cellular)Jul 22, 2026+8 daysS731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5

Download and release notes

samloader download -m SM-S731U -r XAA -v S731USQS8BZF5/S731UOYN8BZF5/S731USQS8BZF5

Samsung's release notes and security patch level for this update: SM-S731U / XAA on doc.samsungmobile.com. What each part of the build number means: decode S731USQS8BZF5.