G766U1UES8CZF1 – Galaxy XCover7 Pro firmware

Build G766U1UES8CZF1 is a security update for the Galaxy XCover7 Pro (SM-G766U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 30, 2026 (method) and has reached 12 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to G766U1UEU7CZE7 is blocked. Samsung still serves this file.

Model
SM-G766U1
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jun 30, 2026
Regions
12

Rollout timeline by region

The date each region code (CSC) first received G766U1UES8CZF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
AIOUSA (Cricket)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
ATTUSA (AT&T)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
CCTUSA (Comcast)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
DSAUSAJun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
DSHUSAJun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
LRAUSA (Bluegrass)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
TMBUSA (T-Mobile)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
TMKUSA (MetroPCS)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
VZWUSA (Verizon)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
XAAUSA (unlocked)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1
XARUSA (Cellular South)Jun 30, 2026day 0G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1

Download and release notes

samloader download -m SM-G766U1 -r XAA -v G766U1UES8CZF1/G766U1OYM8CZF1/G766U1UES8CZF1

Samsung's release notes and security patch level for this update: SM-G766U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode G766U1UES8CZF1.