G766USQSACZI3 – Galaxy XCover7 Pro firmware
Build G766USQSACZI3 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 Sep 28, 2026 (method) and has reached
4 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to G766USQS9CZH1 is blocked. Samsung still serves this file.
- Model
- SM-G766U
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 10
- First released
- Sep 28, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received G766USQSACZI3, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
TMB | USA (T-Mobile) | Sep 28, 2026 | day 0 | G766USQSACZI3/G766UOYNACZI3/G766USQSACZI3 |
TMK | USA (MetroPCS) | Sep 28, 2026 | day 0 | G766USQSACZI3/G766UOYNACZI3/G766USQSACZI3 |
VZW | USA (Verizon) | Sep 28, 2026 | day 0 | G766USQSACZI3/G766UOYNACZI3/G766USQSACZI3 |
ATT | USA (AT&T) | Sep 29, 2026 | +1 day | G766USQSACZI3/G766UOYNACZI3/G766USQSACZI3 |
Download and release notes
samloader download -m SM-G766U -r TMB -v G766USQSACZI3/G766UOYNACZI3/G766USQSACZI3Samsung's release notes and security patch level for this update: SM-G766U / TMB on doc.samsungmobile.com. What each part of the build number means: decode G766USQSACZI3.