Samsung Galaxy Tab Active5 Pro 5G (SM-X356N) Firmware Overview
What is the latest SM-X356N firmware?
X356NKOSBCZJ2, released October 12, 2026 with Android 16. It is a security update on bootloader binary 11. The archive holds 11 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Tab Active5 Pro 5G still getting updates?
Yes. The newest build is from October 2026.
Can I downgrade the SM-X356N firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 4 to 11:
- Binary 11 — since Sep 2026
- Binary 10 — since Aug 2026
- Binary 9 — since Jul 2026
- Binary 8 — since Jun 2026
- Binary 7 — since Apr 2026
- Binary 6 — since Feb 2026
- Binary 5 — since Jan 2026
- Binary 4 — since Dec 2025
A phone already on binary 11 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 11 build. How to read a build number.
All SM-X356N firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
X356NKOSBCZJ2
Security update
|
11 | KOO | 16 |
2026-10-12 | Download |
|
X356NKOSBCZI3
Security update
|
11 | KOO | 16 |
2026-09-10 | Download |
|
X356NKOSACZH4
Security update
|
10 | KOO | 16 |
2026-08-20 | Download |
|
X356NKOS9CZG5
Security update
|
9 | KOO | 16 |
2026-07-15 | Download |
|
X356NKOS8CZF3
Security update
|
8 | KOO | 16 |
2026-06-17 | Download |
|
X356NKOS7BZD3
Security update
|
7 | KOO | 16 |
2026-04-09 | Download |
|
X356NKOS6BZC2
Security update
|
6 | KOO | 16 |
2026-03-12 | Download |
|
X356NKOS6BZB5
Security update
|
6 | KOO | 16 |
2026-02-15 | Download |
|
X356NKOS5BZA2
Security update
|
5 | KOO | 16 |
2026-01-09 | Download |
|
X356NKOS4BYL1
Security update
|
4 | KOO | 16 |
2025-12-08 | Download |
|
X356NKOU7CZE4
Feature update
|
7 | KOO | — |
N/A | Download |
How to Flash SM-X356N Firmware
Put the Samsung Galaxy Tab Active5 Pro 5G 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 11 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.