F976U1UEU3AZJ8 – Galaxy Z Fold8 Ultra firmware

Build F976U1UEU3AZJ8 is a feature update for the Galaxy Z Fold8 Ultra (SM-F976U1) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 28, 2026 (method) and has reached 13 regions so far. It keeps bootloader bit 3, so downgrading to the previous build F976U1UES3AZIL is still possible. Samsung still serves this file.

Model
SM-F976U1
Android
Android 17
Type
Feature
Bootloader bit
3
First released
Oct 28, 2026
Regions
13

Rollout timeline by region

The date each region code (CSC) first received F976U1UEU3AZJ8, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TFNUSA (TracFone)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
TMBUSA (T-Mobile)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
TMKUSA (MetroPCS)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
VZWUSA (Verizon)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
XAAUSA (unlocked)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
XARUSA (Cellular South)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
ACGUSA (C Spire)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
AIOUSA (Cricket)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
ATTUSA (AT&T)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
CCTUSA (Comcast)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
DSAUSAOct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
DSHUSAOct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8
LRAUSA (Bluegrass)Oct 28, 2026day 0F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8

Download and release notes

samloader download -m SM-F976U1 -r XAA -v F976U1UEU3AZJ8/F976U1OYM3AZJ8/F976U1UEU3AZJ8

Samsung's release notes and security patch level for this update: SM-F976U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F976U1UEU3AZJ8.