F766USQUDCZJB – Galaxy Z Flip7 firmware

Build F766USQUDCZJB is a feature update for the Galaxy Z Flip7 (SM-F766U) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 4, 2026 (method) and has reached 7 regions so far. It keeps bootloader bit 13, so downgrading to the previous build F766USQSDCZJ1 is still possible. Samsung still serves this file.

Model
SM-F766U
Android
Android 17
Type
Feature
Bootloader bit
13
First released
Nov 4, 2026
Regions
7

Rollout timeline by region

The date each region code (CSC) first received F766USQUDCZJB, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
USCUSA (US Cellular)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
VZWUSA (Verizon)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
XAAUSA (unlocked)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
ATTUSA (AT&T)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
CCTUSA (Comcast)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
TMBUSA (T-Mobile)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB
TMKUSA (MetroPCS)Nov 4, 2026day 0F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB

Download and release notes

samloader download -m SM-F766U -r XAA -v F766USQUDCZJB/F766UOYNDCZJB/F766USQUDCZJB

Samsung's release notes and security patch level for this update: SM-F766U / XAA on doc.samsungmobile.com. What each part of the build number means: decode F766USQUDCZJB.