Samsung SM-G766U Firmware Overview
What is the latest SM-G766U firmware?
G766USQSACZI3, released September 11, 2026 with Android 16. It is a security update on bootloader binary 10. The archive holds 20 official builds across 4 regions (CSC).
Is the Samsung SM-G766U still getting updates?
Yes. The newest build is from September 2026, and 4 of 4 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-G766U firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 7 to 10:
- Binary 10 — since Sep 2026
- Binary 9 — since Jul 2026
- Binary 8 — since Jun 2026
- Binary 7 — since May 2026
A phone already on binary 10 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 10 build. How to read a build number.
All SM-G766U firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
G766USQSACZI3
Security update
|
10 | TMB | 16 |
2026-09-11 | Download |
|
G766USQSACZI3
Security update
|
10 | TMK | 16 |
2026-09-11 | Download |
|
G766USQSACZI3
Security update
|
10 | ATT | 16 |
2026-09-11 | Download |
|
G766USQSACZI3
Security update
|
10 | VZW | 16 |
2026-09-11 | Download |
|
G766USQS9CZH1
Security update
|
9 | VZW | 16 |
2026-08-18 | Download |
|
G766USQS9CZH1
Security update
|
9 | TMB | 16 |
2026-08-18 | Download |
|
G766USQS9CZH1
Security update
|
9 | TMK | 16 |
2026-08-18 | Download |
|
G766USQS9CZH1
Security update
|
9 | ATT | 16 |
2026-08-18 | Download |
|
G766USQS9CZG1
Security update
|
9 | VZW | 16 |
2026-07-07 | Download |
|
G766USQS9CZG1
Security update
|
9 | ATT | 16 |
2026-07-07 | Download |
|
G766USQS9CZG1
Security update
|
9 | TMK | 16 |
2026-07-07 | Download |
|
G766USQS9CZG1
Security update
|
9 | TMB | 16 |
2026-07-07 | Download |
|
G766USQS8CZF1
Security update
|
8 | VZW | 16 |
2026-06-16 | Download |
|
G766USQS8CZF1
Security update
|
8 | TMB | 16 |
2026-06-16 | Download |
|
G766USQS8CZF1
Security update
|
8 | TMK | 16 |
2026-06-16 | Download |
|
G766USQS8CZF1
Security update
|
8 | ATT | 16 |
2026-06-16 | Download |
|
G766USQU7CZE7
Feature update
|
7 | VZW | 16 |
2026-05-20 | Download |
|
G766USQU7CZE7
Feature update
|
7 | TMK | 16 |
2026-05-20 | Download |
|
G766USQU7CZE7
Feature update
|
7 | TMB | 16 |
2026-05-20 | Download |
|
G766USQU7CZE7
Feature update
|
7 | ATT | 16 |
2026-05-20 | Download |
Latest SM-G766U Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| ATT | G766USQSACZI3 | 10 | 16 | 2026-09-11 |
| TMB | G766USQSACZI3 | 10 | 16 | 2026-09-11 |
| TMK | G766USQSACZI3 | 10 | 16 | 2026-09-11 |
| VZW | G766USQSACZI3 | 10 | 16 | 2026-09-11 |
How to Flash SM-G766U Firmware
Put the Samsung SM-G766U into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 10 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.