Samsung Galaxy Z Fold8 (SM-F971U) Firmware Overview
What is the latest SM-F971U firmware?
F971USQU3AZJ8, released October 16, 2026 with Android 17. It is a feature update on bootloader binary 3. The archive holds 29 official builds across 9 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Z Fold8 still getting updates?
Yes. The newest build is from October 2026, and 9 of 9 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-F971U firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 3:
- Binary 3 — since Sep 2026
All SM-F971U firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
F971USQU3AZJ8
Feature update
|
3 | ATT | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | CCT | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | CHA | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | TMK | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | SPT | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | AIO | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | TMB | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | VZW | 17 |
2026-10-16 | Download |
|
F971USQU3AZJ8
Feature update
|
3 | XAA | 17 |
2026-10-16 | Download |
|
F971USQS3AZIL
Security update
|
3 | AIO | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | ATT | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | CCT | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | CHA | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | TMB | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | TMK | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | VZW | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | XAA | 17 |
2026-09-28 | Download |
|
F971USQS3AZIL
Security update
|
3 | SPT | 17 |
2026-09-28 | Download |
|
F971USQU3AZI8
Feature update
|
3 | VZW | 17 |
2026-09-15 | Download |
|
F971USQU3AZI8
Feature update
|
3 | XAA | 17 |
2026-09-15 | Download |
|
F971USQU3AZI5
Feature update
|
3 | AIO | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | ATT | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | CCT | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | CHA | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | TMB | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | TMK | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | VZW | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | XAA | 17 |
2026-09-08 | Download |
|
F971USQU3AZI5
Feature update
|
3 | SPT | 17 |
2026-09-08 | Download |
Latest SM-F971U 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 |
|---|---|---|---|---|
| AIO | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| ATT | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| CCT | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| CHA | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| SPT | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| TMB | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| TMK | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| VZW | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
| XAA | F971USQU3AZJ8 | 3 | 17 | 2026-10-16 |
How to Flash SM-F971U Firmware
Put the Samsung Galaxy Z Fold8 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 3 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.