F766U1UEUDCZJB – Galaxy Z Flip7 firmware

Build F766U1UEUDCZJB is a feature update for the Galaxy Z Flip7 (SM-F766U1) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 4, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 13, so downgrading to the previous build F766U1UESDCZJ1 is still possible. Samsung still serves this file.

Model
SM-F766U1
Android
Android 17
Type
Feature
Bootloader bit
13
First released
Nov 4, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received F766U1UEUDCZJB, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
USCUSA (US Cellular)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
TMBUSA (T-Mobile)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
TMKUSA (MetroPCS)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
ACGUSA (C Spire)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
AIOUSA (Cricket)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
ATTUSA (AT&T)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
CCTUSA (Comcast)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
LRAUSA (Bluegrass)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
TFNUSA (TracFone)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
VZWUSA (Verizon)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
XAAUSA (unlocked)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
XARUSA (Cellular South)Nov 4, 2026day 0F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
DSAUSANov 5, 2026+1 dayF766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB
DSHUSANov 5, 2026+1 dayF766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB

Download and release notes

samloader download -m SM-F766U1 -r XAA -v F766U1UEUDCZJB/F766U1OYMDCZJB/F766U1UEUDCZJB

Samsung's release notes and security patch level for this update: SM-F766U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F766U1UEUDCZJB.