Samsung Galaxy S25 (SM-S9310) Firmware Overview
What is the latest SM-S9310 firmware?
S9310ZHSEDZJ1, released October 14, 2026 with Android 17. It is a security update on bootloader binary 14. The archive holds 23 official builds across 3 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy S25 still getting updates?
Yes. The newest build is from October 2026, and 3 of 3 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-S9310 builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: S9310ZHUDDZIF (Sep 2026), 4 builds in total
- Android 16: S9310ZCSABZD1 (Apr 2026), 19 builds in total
Can I downgrade the SM-S9310 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 14:
- Binary 14 — since Oct 2026
- Binary 13 — since Aug 2026
- Binary 12 — since Jul 2026
- Binary 11 — since May 2026
- Binary 10 — since Apr 2026
A phone already on binary 14 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 14 build. How to read a build number.
All SM-S9310 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
S9310ZHSEDZJ1
Security update
|
14 | TGY | 17 |
2026-10-14 | Download |
|
S9310ZHSEDZJ1
Security update
|
14 | BRI | 17 |
2026-10-14 | Download |
|
S9310ZCSECZJ1
Security update
|
14 | CHC | 16 |
2026-10-12 | Download |
|
S9310ZHUDDZIF
Feature update
|
13 | BRI | 17 |
2026-09-20 | Download |
|
S9310ZHUDDZIF
Feature update
|
13 | TGY | 17 |
2026-09-20 | Download |
|
S9310ZCSDCZI1
Security update
|
13 | CHC | 16 |
2026-09-17 | Download |
|
S9310ZCSDCZH1
Security update
|
13 | CHC | 16 |
2026-08-13 | Download |
|
S9310ZHSDCZH1
Security update
|
13 | TGY | 16 |
2026-08-13 | Download |
|
S9310ZHSDCZH1
Security update
|
13 | BRI | 16 |
2026-08-13 | Download |
|
S9310ZHSCCZG1
Security update
|
12 | TGY | 16 |
2026-07-09 | Download |
|
S9310ZHSCCZG1
Security update
|
12 | BRI | 16 |
2026-07-09 | Download |
|
S9310ZCSCCZG1
Security update
|
12 | CHC | 16 |
2026-07-09 | Download |
|
S9310ZHUBCZF1
Feature update
|
11 | TGY | 16 |
2026-06-03 | Download |
|
S9310ZHUBCZF1
Feature update
|
11 | BRI | 16 |
2026-06-03 | Download |
|
S9310ZCUBCZF1
Feature update
|
11 | CHC | 16 |
2026-06-02 | Download |
|
S9310ZCSBCZE1
Security update
|
11 | CHC | 16 |
2026-05-15 | Download |
|
S9310ZHSBCZE1
Security update
|
11 | TGY | 16 |
2026-05-14 | Download |
|
S9310ZHSBCZE1
Security update
|
11 | BRI | 16 |
2026-05-14 | Download |
|
S9310ZHUACZDP
Feature update
|
10 | TGY | 16 |
2026-05-11 | Download |
|
S9310ZCUACZDP
Feature update
|
10 | CHC | 16 |
2026-05-11 | Download |
|
S9310ZHUACZDP
Feature update
|
10 | BRI | 16 |
2026-05-11 | Download |
|
S9310ZCSABZD1
Security update
|
10 | CHC | 16 |
2026-04-13 | Download |
|
S9310ZHSABZD1
Security update
|
10 | BRI | 16 |
2026-04-13 | Download |
Latest SM-S9310 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 |
|---|---|---|---|---|
| BRI | S9310ZHSEDZJ1 | 14 | 17 | 2026-10-14 |
| CHC | S9310ZCSECZJ1 | 14 | 16 | 2026-10-12 |
| TGY | S9310ZHSEDZJ1 | 14 | 17 | 2026-10-14 |
How to Flash SM-S9310 Firmware
Put the Samsung Galaxy S25 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 14 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.