G766USQS9CZG1 – Galaxy XCover7 Pro firmware
Build G766USQS9CZG1 is a security update for the Galaxy XCover7 Pro (SM-G766U)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 22, 2026 (method) and has reached
4 regions so far. It raises the bootloader bit from 8 to 9: once installed, the device no longer accepts firmware with bit 8 or lower, so a downgrade to G766USQS8CZF1 is blocked. Samsung still serves this file.
- Model
- SM-G766U
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 9
- First released
- Jul 22, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received G766USQS9CZG1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ATT | USA (AT&T) | Jul 22, 2026 | day 0 | G766USQS9CZG1/G766UOYN9CZG1/G766USQS9CZG1 |
VZW | USA (Verizon) | Jul 22, 2026 | day 0 | G766USQS9CZG1/G766UOYN9CZG1/G766USQS9CZG1 |
TMK | USA (MetroPCS) | Jul 26, 2026 | +4 days | G766USQS9CZG1/G766UOYN9CZG1/G766USQS9CZG1 |
TMB | USA (T-Mobile) | Jul 26, 2026 | +4 days | G766USQS9CZG1/G766UOYN9CZG1/G766USQS9CZG1 |
Download and release notes
samloader download -m SM-G766U -r ATT -v G766USQS9CZG1/G766UOYN9CZG1/G766USQS9CZG1Samsung's release notes and security patch level for this update: SM-G766U / ATT on doc.samsungmobile.com. What each part of the build number means: decode G766USQS9CZG1.