Samsung Galaxy S23 (SM-S911U) Firmware Overview
What is the latest SM-S911U firmware?
S911USQU8GZIF, released September 29, 2026 with Android 17. It is a feature update on bootloader binary 8. The archive holds 98 official builds across 11 regions (CSC).
Is the Samsung Galaxy S23 still getting updates?
Yes. The newest build is from September 2026, and 10 of 11 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-S911U builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: S911USQU8GZIF (Sep 2026), 6 builds in total
- Android 16: S911USQS6EYL1 (Dec 2025), 92 builds in total
Can I downgrade the SM-S911U firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 6 to 8:
- Binary 8 — since Jun 2026
- Binary 7 — since Feb 2026
- Binary 6 — since Dec 2025
A phone already on binary 8 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 8 build. How to read a build number.
All SM-S911U firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
S911USQU8GZIF
Feature update
|
8 | DSH | 17 |
2026-09-29 | Download |
|
S911USQU8GZIF
Feature update
|
8 | DSA | 17 |
2026-09-29 | Download |
|
S911USQU8GZIF
Feature update
|
8 | TMB | 17 |
2026-09-29 | Download |
|
S911USQU8GZIF
Feature update
|
8 | TMK | 17 |
2026-09-29 | Download |
|
S911USQU8GZIF
Feature update
|
8 | ATT | 17 |
2026-09-29 | Download |
|
S911USQU8GZIF
Feature update
|
8 | USC | 17 |
2026-09-29 | Download |
|
S911USQS8FZI1
Security update
|
8 | TMK | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | ATT | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | DSH | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | DSA | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | XAA | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | CHA | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | VZW | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | USC | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | CCT | 16 |
2026-09-15 | Download |
|
S911USQS8FZI1
Security update
|
8 | TMB | 16 |
2026-09-15 | Download |
|
S911USQS8FZH3
Security update
|
8 | XAA | 16 |
2026-09-04 | Download |
|
S911USQS8FZH3
Security update
|
8 | LLA | 16 |
2026-08-14 | Download |
|
S911USQS8FZH3
Security update
|
8 | USC | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | CCT | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | CHA | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | DSA | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | DSH | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | TMB | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | ATT | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | TMK | 16 |
2026-08-13 | Download |
|
S911USQS8FZH3
Security update
|
8 | VZW | 16 |
2026-08-13 | Download |
|
S911USQS8FZG1
Security update
|
8 | LLA | 16 |
2026-07-17 | Download |
|
S911USQS8FZG1
Security update
|
8 | TMB | 16 |
2026-07-15 | Download |
|
S911USQS8FZG1
Security update
|
8 | DSA | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | DSH | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | USC | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | ATT | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | CHA | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | CCT | 16 |
2026-07-08 | Download |
|
S911USQS8FZG1
Security update
|
8 | XAA | 16 |
2026-07-08 | Download |
|
S911USQS8FZF5
Security update
|
8 | LLA | 16 |
2026-06-18 | Download |
|
S911USQS8FZF5
Security update
|
8 | CHA | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | CCT | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | TMB | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | TMK | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | ATT | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | USC | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | DSH | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | DSA | 16 |
2026-06-15 | Download |
|
S911USQS8FZF5
Security update
|
8 | XAA | 16 |
2026-06-15 | Download |
|
S911USQS7FZE3
Security update
|
7 | CCT | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | XAA | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | CHA | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | USC | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | TMB | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | TMK | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | ATT | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | DSA | 16 |
2026-05-18 | Download |
|
S911USQS7FZE3
Security update
|
7 | DSH | 16 |
2026-05-18 | Download |
|
S911USQU7FZE2
Feature update
|
7 | LLA | 16 |
2026-05-09 | Download |
|
S911USQS7EZCI
Security update
|
7 | XAA | 16 |
2026-04-21 | Download |
|
S911USQS7EZCI
Security update
|
7 | VZW | 16 |
2026-04-21 | Download |
|
S911USQS7EZCI
Security update
|
7 | CHA | 16 |
2026-04-21 | Download |
|
S911USQS7EZCI
Security update
|
7 | CCT | 16 |
2026-04-21 | Download |
|
S911USQS7EZCI
Security update
|
7 | TMB | 16 |
2026-04-16 | Download |
|
S911USQS7EZCI
Security update
|
7 | TMK | 16 |
2026-04-16 | Download |
|
S911USQS7EZCI
Security update
|
7 | DSH | 16 |
2026-04-15 | Download |
|
S911USQS7EZCI
Security update
|
7 | DSA | 16 |
2026-04-15 | Download |
|
S911USQS7EZCI
Security update
|
7 | USC | 16 |
2026-04-15 | Download |
|
S911USQS7EZC1
Security update
|
7 | XAA | 16 |
2026-04-07 | Download |
|
S911USQS7EZC1
Security update
|
7 | CHA | 16 |
2026-04-07 | Download |
|
S911USQS7EZB7
Security update
|
7 | LLA | 16 |
2026-03-07 | Download |
|
S911USQS7EZB6
Security update
|
7 | XAA | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | ATT | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | VZW | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | CHA | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | CCT | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | TMK | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | TMB | 16 |
2026-03-05 | Download |
|
S911USQS7EZB6
Security update
|
7 | DSH | 16 |
2026-03-03 | Download |
|
S911USQS7EZB6
Security update
|
7 | DSA | 16 |
2026-03-03 | Download |
|
S911USQS7EZB6
Security update
|
7 | USC | 16 |
2026-03-03 | Download |
|
S911USQS6EZA1
Security update
|
6 | VZW | 16 |
2026-01-30 | Download |
|
S911USQS6EZA1
Security update
|
6 | XAA | 16 |
2026-01-30 | Download |
|
S911USQS6EZA2
Security update
|
6 | LLA | 16 |
2026-01-30 | Download |
|
S911USQS6EZA1
Security update
|
6 | CHA | 16 |
2026-01-29 | Download |
|
S911USQS6EZA1
Security update
|
6 | CCT | 16 |
2026-01-29 | Download |
|
S911USQS6EZA1
Security update
|
6 | DSH | 16 |
2026-01-28 | Download |
|
S911USQS6EZA1
Security update
|
6 | USC | 16 |
2026-01-28 | Download |
|
S911USQS6EZA1
Security update
|
6 | DSA | 16 |
2026-01-28 | Download |
|
S911USQS6EZA1
Security update
|
6 | TMK | 16 |
2026-01-27 | Download |
|
S911USQS6EZA1
Security update
|
6 | TMB | 16 |
2026-01-27 | Download |
|
S911USQS6EZA1
Security update
|
6 | ATT | 16 |
2026-01-27 | Download |
|
S911USQS6EYL1
Security update
|
6 | XAA | 16 |
2025-12-22 | Download |
|
S911USQS6EYL1
Security update
|
6 | CHA | 16 |
2025-12-22 | Download |
|
S911USQS6EYL1
Security update
|
6 | CCT | 16 |
2025-12-22 | Download |
|
S911USQS6EYL1
Security update
|
6 | VZW | 16 |
2025-12-19 | Download |
|
S911USQS6EYL1
Security update
|
6 | TMB | 16 |
2025-12-18 | Download |
|
S911USQS6EYL1
Security update
|
6 | USC | 16 |
2025-12-18 | Download |
|
S911USQS6EYL1
Security update
|
6 | ATT | 16 |
2025-12-18 | Download |
|
S911USQS6EYL1
Security update
|
6 | DSA | 16 |
2025-12-18 | Download |
|
S911USQS6EYL1
Security update
|
6 | DSH | 16 |
2025-12-18 | Download |
Latest SM-S911U 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 | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| CCT | S911USQS8FZI1 | 8 | 16 | 2026-09-15 |
| CHA | S911USQS8FZI1 | 8 | 16 | 2026-09-15 |
| DSA | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| DSH | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| LLA | S911USQS8FZH3 | 8 | 16 | 2026-08-14 |
| TMB | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| TMK | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| USC | S911USQU8GZIF | 8 | 17 | 2026-09-29 |
| VZW | S911USQS8FZI1 | 8 | 16 | 2026-09-15 |
| XAA | S911USQS8FZI1 | 8 | 16 | 2026-09-15 |
How to Flash SM-S911U Firmware
Put the Samsung Galaxy S23 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 8 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.