F971U1UEU1AZGI – Galaxy Z Fold8 firmware

Build F971U1UEU1AZGI is a feature update for the Galaxy Z Fold8 (SM-F971U1) on Android 17 (One UI 9). It first appeared on Samsung's servers on Jul 30, 2026 (method) and has reached 13 regions so far. It keeps bootloader bit 1, so downgrading to the previous build F971U1UEU1AZFW is still possible. Samsung still serves this file.

Model
SM-F971U1
Android
Android 17
Type
Feature
Bootloader bit
1
First released
Jul 30, 2026
Regions
13

Rollout timeline by region

The date each region code (CSC) first received F971U1UEU1AZGI, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
AIOUSA (Cricket)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
ATTUSA (AT&T)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
CCTUSA (Comcast)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
DSAUSAJul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
DSHUSAJul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
LRAUSA (Bluegrass)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
TFNUSA (TracFone)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
TMBUSA (T-Mobile)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
TMKUSA (MetroPCS)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
VZWUSA (Verizon)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
XAAUSA (unlocked)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI
XARUSA (Cellular South)Jul 30, 2026day 0F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI

Download and release notes

samloader download -m SM-F971U1 -r XAA -v F971U1UEU1AZGI/F971U1OYM1AZGI/F971U1UEU1AZGI

Samsung's release notes and security patch level for this update: SM-F971U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F971U1UEU1AZGI.