S931USQUACZF1 – Galaxy S25 firmware

Build S931USQUACZF1 is a feature update for the Galaxy S25 (SM-S931U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 14, 2026 (method) and has reached 10 regions so far. It keeps bootloader bit 10, so downgrading to the previous build S931USQSACZE1 is still possible. Samsung still serves this file.

Model
SM-S931U
Android
Android 16
Type
Feature
Bootloader bit
10
First released
Jun 14, 2026
Regions
10

Rollout timeline by region

The date each region code (CSC) first received S931USQUACZF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AIOUSA (Cricket)Jun 14, 2026day 0S931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
ATTUSA (AT&T)Jun 14, 2026day 0S931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
XAAUSA (unlocked)Jun 14, 2026day 0S931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
TMBUSA (T-Mobile)Jun 15, 2026+1 dayS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
TMKUSA (MetroPCS)Jun 15, 2026+1 dayS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
CCTUSA (Comcast)Jun 16, 2026+2 daysS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
DSAUSAJun 16, 2026+2 daysS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
DSHUSAJun 16, 2026+2 daysS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
VZWUSA (Verizon)Jun 16, 2026+2 daysS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1
USCUSA (US Cellular)Jun 22, 2026+8 daysS931USQUACZF1/S931UOYNACZF1/S931USQUACZF1

Download and release notes

samloader download -m SM-S931U -r XAA -v S931USQUACZF1/S931UOYNACZF1/S931USQUACZF1

Samsung's release notes and security patch level for this update: SM-S931U / XAA on doc.samsungmobile.com. What each part of the build number means: decode S931USQUACZF1.