Samsung Galaxy Z Fold8 Ultra (SM-F976B) Firmware Overview
What is the latest SM-F976B firmware?
F976BXXU3AZJC, released October 29, 2026 with Android 17. It is a feature update on bootloader binary 3. The archive holds 104 official builds across 38 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Z Fold8 Ultra still getting updates?
Yes. The newest build is from October 2026, and 32 of 38 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-F976B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 3:
- Binary 3 — since Sep 2026
- Binary 2 — since Aug 2026
- Binary 1 — since Jun 2026
A phone already on binary 3 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 3 build. How to read a build number.
All SM-F976B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
F976BXXU3AZJC
Feature update
|
3 | INS | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | PRT | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | PLS | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | ILP | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | SKZ | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | XFV | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | SEK | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | XSG | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | XFA | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | EGY | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | EUY | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | XID | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | EUX | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | CAU | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | CAC | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | DKR | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | ACR | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | GLB | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | TUR | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | ECT | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | ILO | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJC
Feature update
|
3 | DOR | 17 |
2026-10-29 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | MXO | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | TCE | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | GTO | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ZTM | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ZTA | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ZTO | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ZVV | 17 |
2026-10-17 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | EUX | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | CAC | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ACR | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | CAU | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | DKR | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ECT | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | GLB | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | ILO | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | INS | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | TUR | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | EGY | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | XXV | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | THL | 17 |
2026-10-16 | Download |
|
F976BXXU3AZJ8
Feature update
|
3 | XNZ | 17 |
2026-10-16 | Download |
|
F976BXXS3AZIK
Security update
|
3 | EGY | 17 |
2026-10-01 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | EUY | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | GLB | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | GTO | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | ILO | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | INS | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | TUR | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | GLO | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | EUX | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | ACR | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | CAC | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | CAU | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | CDR | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | CGU | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | DKR | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | DOR | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | ECO | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | ECT | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | EON | 17 |
2026-09-23 | Download |
|
F976BXXS3AZIJ
Security update
|
3 | KSA | 17 |
2026-09-23 | Download |
|
F976BXXU3AZI5
Feature update
|
3 | DKR | 17 |
2026-09-08 | Download |
|
F976BXXS2AZH7
Security update
|
2 | INS | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | ECT | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | EUY | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | EON | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | GLB | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | ILO | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | GTO | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | GLO | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | ECO | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | DOR | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | EUX | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | ACR | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | CAC | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | CAU | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | CDR | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | CGU | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | DKR | 17 |
2026-08-10 | Download |
|
F976BXXS2AZH7
Security update
|
2 | TUR | 17 |
2026-08-10 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | GLO | 17 |
2026-07-28 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | DOR | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | CGU | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | EUX | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | ILO | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | ACR | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | ECT | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | CAC | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | CAU | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | DKR | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | GTO | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | GLB | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | EUY | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | EON | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | ECO | 17 |
2026-07-24 | Download |
|
F976BXXU1AZGI
Feature update
|
1 | CDR | 17 |
2026-07-24 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | ECT | 17 |
2026-06-25 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | DKR | 17 |
2026-06-25 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | DOR | 17 |
2026-06-25 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | CGU | 17 |
2026-06-25 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | CAC | 17 |
2026-06-25 | Download |
|
F976BXXU1AZFW
Feature update
|
1 | ACR | 17 |
2026-06-25 | Download |
Latest SM-F976B 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 |
|---|---|---|---|---|
| ACR | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| CAC | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| CAU | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| CDR | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| CGU | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| DKR | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| DOR | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| ECO | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| ECT | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| EGY | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| EON | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| EUX | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| EUY | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| GLB | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| GLO | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| GTO | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| ILO | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| ILP | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| INS | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| KSA | F976BXXS3AZIJ | 3 | 17 | 2026-09-23 |
| MXO | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| PLS | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| PRT | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| SEK | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| SKZ | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| TCE | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| THL | F976BXXU3AZJ8 | 3 | 17 | 2026-10-16 |
| TUR | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| XFA | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| XFV | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| XID | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| XNZ | F976BXXU3AZJ8 | 3 | 17 | 2026-10-16 |
| XSG | F976BXXU3AZJC | 3 | 17 | 2026-10-29 |
| XXV | F976BXXU3AZJ8 | 3 | 17 | 2026-10-16 |
| ZTA | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| ZTM | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| ZTO | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
| ZVV | F976BXXU3AZJ8 | 3 | 17 | 2026-10-17 |
How to Flash SM-F976B Firmware
Put the Samsung Galaxy Z Fold8 Ultra 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.