Samsung Galaxy Z Fold4 (SM-F936B) Firmware Overview
What is the latest SM-F936B firmware?
F936BXXSCIZH3, released August 20, 2026 with Android 16. It is a security update on bootloader binary 12. The archive holds 153 official builds across 64 regions (CSC).
Is the Samsung Galaxy Z Fold4 still getting updates?
Yes. The newest build is from August 2026, and 33 of 64 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-F936B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 10 to 12:
- Binary 12 — since May 2026
- Binary 11 — since Feb 2026
- Binary 10 — since Jan 2026
A phone already on binary 12 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 12 build. How to read a build number.
All SM-F936B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
F936BXXSCIZH3
Security update
|
12 | CRC | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | UPO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | SAM | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | ECO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | ZTO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | ZTA | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | PEO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | ZTM | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | ARO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | GLO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | CDR | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | PGU | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | COB | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | BVO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | COM | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | TCE | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | COO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | MXO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | UYO | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | CGU | 16 |
2026-08-20 | Download |
|
F936BXXSCIZH3
Security update
|
12 | XID | 16 |
2026-08-18 | Download |
|
F936BXXSCIZH4
Security update
|
12 | XSA | 16 |
2026-08-17 | Download |
|
F936BXXSCIZH4
Security update
|
12 | VAU | 16 |
2026-08-17 | Download |
|
F936BXXSCIZH4
Security update
|
12 | TEL | 16 |
2026-08-17 | Download |
|
F936BXXSCIZH4
Security update
|
12 | OPS | 16 |
2026-08-17 | Download |
|
F936BXXSCIZH3
Security update
|
12 | PRT | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | CHO | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | TOP | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | VIP | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | EUX | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | BTE | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | BTB | 16 |
2026-08-14 | Download |
|
F936BXXSCIZH3
Security update
|
12 | EUY | 16 |
2026-08-14 | Download |
|
F936BXXSCIZG4
Security update
|
12 | OPS | 16 |
2026-07-10 | Download |
|
F936BXXSCIZG4
Security update
|
12 | XSA | 16 |
2026-07-10 | Download |
|
F936BXXSCIZG3
Security update
|
12 | XID | 16 |
2026-07-10 | Download |
|
F936BXXSCIZG4
Security update
|
12 | VAU | 16 |
2026-07-10 | Download |
|
F936BXXSCIZG4
Security update
|
12 | TEL | 16 |
2026-07-10 | Download |
|
F936BXXSCIZG3
Security update
|
12 | GLO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | TCE | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | COB | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | COO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | PEO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | PGU | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | ZTA | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | ECO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | BVO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | COM | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | CDR | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | MXO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | ZTO | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | EBE | 16 |
2026-07-09 | Download |
|
F936BXXSCIZG3
Security update
|
12 | EON | 16 |
2026-07-09 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ARO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | CRC | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | UYO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | EON | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ZVV | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ZTM | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | CGU | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | UPO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | PNT | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | GLO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | SAM | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | PET | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | PEO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | EBE | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | MXO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | COM | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ZTO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ECO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | BVO | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | CDR | 16 |
2026-06-16 | Download |
|
F936BXXSCIZF1
Security update
|
12 | XID | 16 |
2026-06-15 | Download |
|
F936BXXSCIZF2
Security update
|
12 | TEL | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | XSG | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | XNZ | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | KSA | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF2
Security update
|
12 | VAU | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF2
Security update
|
12 | XSA | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | GLB | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | THL | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | MWD | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | AFR | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | ILP | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | PKD | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | EUY | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | AFG | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF2
Security update
|
12 | OPS | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | FWD | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | MM1 | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | TUN | 16 |
2026-06-12 | Download |
|
F936BXXSCIZF1
Security update
|
12 | XSP | 16 |
2026-06-12 | Download |
|
F936BXXSCIZE1
Security update
|
12 | BVO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | ECO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | COM | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | ZTO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | MXO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | CDR | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | ZTA | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | PGU | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | COB | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | TCE | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | COO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | PEO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | ZTM | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | UPO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | SAM | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE2
Security update
|
12 | XSA | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | XID | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | EON | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE1
Security update
|
12 | ARO | 16 |
2026-05-08 | Download |
|
F936BXXSCIZE2
Security update
|
12 | VAU | 16 |
2026-05-08 | Download |
|
F936BXXSBIZB6
Security update
|
11 | SLK | 16 |
2026-03-05 | Download |
|
F936BXXSBIZB6
Security update
|
11 | NPL | 16 |
2026-03-05 | Download |
|
F936BXXSBIZB6
Security update
|
11 | BKD | 16 |
2026-03-05 | Download |
|
F936BXXSBIZB6
Security update
|
11 | INS | 16 |
2026-03-05 | Download |
|
F936BXXSBIZB6
Security update
|
11 | CHO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | GTO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | CRC | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | ECO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | GLO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | CDR | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | COO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | EON | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | UYO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | BVO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | ARO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | UPO | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | COM | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | ZVV | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | ZTM | 16 |
2026-03-04 | Download |
|
F936BXXSBIZB6
Security update
|
11 | PNT | 16 |
2026-03-04 | Download |
|
F936BXXSAIZA1
Security update
|
10 | NPL | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | SLK | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | INS | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | BKD | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | ILP | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | ILO | 16 |
2026-01-29 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XID | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XNZ | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | MM1 | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | STH | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | GLB | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XTC | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XSP | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | THL | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XME | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | XFA | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | DKR | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | KSA | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | PKD | 16 |
2026-01-28 | Download |
|
F936BXXSAIZA1
Security update
|
10 | ECT | 16 |
2026-01-28 | Download |
Latest SM-F936B 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 |
|---|---|---|---|---|
| AFG | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| AFR | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| ARO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| BKD | F936BXXSBIZB6 | 11 | 16 | 2026-03-05 |
| BTB | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| BTE | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| BVO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| CDR | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| CGU | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| CHO | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| COB | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| COM | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| COO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| CRC | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| DKR | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| EBE | F936BXXSCIZG3 | 12 | 16 | 2026-07-09 |
| ECO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| ECT | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| EON | F936BXXSCIZG3 | 12 | 16 | 2026-07-09 |
| EUX | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| EUY | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| FWD | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| GLB | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| GLO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| GTO | F936BXXSBIZB6 | 11 | 16 | 2026-03-04 |
| ILO | F936BXXSAIZA1 | 10 | 16 | 2026-01-29 |
| ILP | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| INS | F936BXXSBIZB6 | 11 | 16 | 2026-03-05 |
| KSA | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| MM1 | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| MWD | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| MXO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| NPL | F936BXXSBIZB6 | 11 | 16 | 2026-03-05 |
| OPS | F936BXXSCIZH4 | 12 | 16 | 2026-08-17 |
| PEO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| PET | F936BXXSCIZF1 | 12 | 16 | 2026-06-16 |
| PGU | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| PKD | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| PNT | F936BXXSCIZF1 | 12 | 16 | 2026-06-16 |
| PRT | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| SAM | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| SLK | F936BXXSBIZB6 | 11 | 16 | 2026-03-05 |
| STH | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| TCE | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| TEL | F936BXXSCIZH4 | 12 | 16 | 2026-08-17 |
| THL | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| TOP | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| TUN | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| UPO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| UYO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| VAU | F936BXXSCIZH4 | 12 | 16 | 2026-08-17 |
| VIP | F936BXXSCIZH3 | 12 | 16 | 2026-08-14 |
| XFA | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| XID | F936BXXSCIZH3 | 12 | 16 | 2026-08-18 |
| XME | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| XNZ | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| XSA | F936BXXSCIZH4 | 12 | 16 | 2026-08-17 |
| XSG | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| XSP | F936BXXSCIZF1 | 12 | 16 | 2026-06-12 |
| XTC | F936BXXSAIZA1 | 10 | 16 | 2026-01-28 |
| ZTA | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| ZTM | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| ZTO | F936BXXSCIZH3 | 12 | 16 | 2026-08-20 |
| ZVV | F936BXXSCIZF1 | 12 | 16 | 2026-06-16 |
How to Flash SM-F936B Firmware
Put the Samsung Galaxy Z Fold4 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 12 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.