Samsung Galaxy Z Fold6 (SM-F956B) Firmware Overview
What is the latest SM-F956B firmware?
F956BXXS4EZJ1, released October 15, 2026 with Android 17. It is a security update on bootloader binary 4. The archive holds 60 official builds across 31 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Z Fold6 still getting updates?
Yes. The newest build is from October 2026, and 28 of 31 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-F956B builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: F956BXXU4EZIH (Sep 2026), 41 builds in total
- Android 16: F956BXXS4DZI1 (Sep 2026), 19 builds in total
Can I downgrade the SM-F956B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 4:
- Binary 4 — since Sep 2026
All SM-F956B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
F956BXXS4EZJ1
Security update
|
4 | CHO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | MXO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ZTO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | COO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ZVV | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | PEO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | TCE | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | UPO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ARO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | UYO | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ZTM | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ZTA | 17 |
2026-10-15 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | XID | 17 |
2026-10-14 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | PAK | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | AFG | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | TUN | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | XFA | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ACR | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | KSA | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | TUR | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | SKZ | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | SEK | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | DKR | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | ECT | 17 |
2026-10-13 | Download |
|
F956BXXS4EZJ1
Security update
|
4 | CAU | 17 |
2026-10-13 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | PEO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | COO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ARO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | UYO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | CHO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ZVV | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ZTO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ZTM | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ZTA | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | ECO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | EON | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | UPO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | CTI | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | MXO | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | TCE | 17 |
2026-10-03 | Download |
|
F956BXXU4EZIH
Feature update
|
4 | XID | 17 |
2026-09-25 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ZTA | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ECO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | CGU | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | UYO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | TCE | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | PEO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | UPO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ARO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | CTI | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ZVV | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ZTO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | COO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | XID | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | CHO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | MXO | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | PGU | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | COM | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | EON | 16 |
2026-09-24 | Download |
|
F956BXXS4DZI1
Security update
|
4 | ZTM | 16 |
2026-09-24 | Download |
Latest SM-F956B 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 | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| AFG | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| ARO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| CAU | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| CGU | F956BXXS4DZI1 | 4 | 16 | 2026-09-24 |
| CHO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| COM | F956BXXS4DZI1 | 4 | 16 | 2026-09-24 |
| COO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| CTI | F956BXXU4EZIH | 4 | 17 | 2026-10-03 |
| DKR | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| ECO | F956BXXU4EZIH | 4 | 17 | 2026-10-03 |
| ECT | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| EON | F956BXXU4EZIH | 4 | 17 | 2026-10-03 |
| KSA | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| MXO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| PAK | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| PEO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| PGU | F956BXXS4DZI1 | 4 | 16 | 2026-09-24 |
| SEK | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| SKZ | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| TCE | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| TUN | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| TUR | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| UPO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| UYO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| XFA | F956BXXS4EZJ1 | 4 | 17 | 2026-10-13 |
| XID | F956BXXS4EZJ1 | 4 | 17 | 2026-10-14 |
| ZTA | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| ZTM | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| ZTO | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
| ZVV | F956BXXS4EZJ1 | 4 | 17 | 2026-10-15 |
How to Flash SM-F956B Firmware
Put the Samsung Galaxy Z Fold6 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 4 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.