Galaxy Tab Active5 Pro 5G SM-X356N updates & firmware
This page tracks every software update Samsung's update servers list for the Samsung Galaxy Tab Active5 Pro 5G (SM-X356N). The latest stable build is X356NKOSBCZJ2 (Android 16, security update), first released on Oct 20, 2026. Samsung has published 19 stable builds for this model since May 14, 2025: 13 security and 6 feature updates, from Android 15 to Android 16. The current bootloader (binary) version is 11. A device on bit 11 only accepts firmware with bit 11 or higher – see downgrading and the bootloader bit.
Rollout: build X356NKOSBCZJ2 (Android 16 (One UI 8)) is live in all 1 regions, first released on Oct 20, 2026 in KOO (South Korea).
- Latest build
X356NKOSBCZJ2- Released
- Oct 20, 2026
- Android
- Android 16
- Bootloader bit
- 11
- Regions
- 1
- Stable builds
- 19
Update policy
Samsung has not published an update commitment for the Galaxy Tab Active5 Pro 5G. According to our data it is on Android 16 (One UI 8), last build released Oct 20, 2026.
Compare all models: Samsung update policy by model.
Latest firmware by region (CSC)
Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.
| CSC | Region | Latest build | Android | Released | Builds |
|---|---|---|---|---|---|
KOO | South Korea | X356NKOSBCZJ2 | Android 16 | Oct 20, 2026 | 19 |
Firmware history (19 builds)
Every stable build (PDA version) Samsung has published for the SM-X356N, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).
| Build (PDA) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
X356NKOSBCZJ2 | Oct 20, 2026 | Android 16 | Security | 11 | 1 | on server |
X356NKOSBCZI3 | Sep 16, 2026 | Android 16 | Security | 11 | 1 | on server |
X356NKOSACZH4 | Aug 26, 2026 | Android 16 | Security | 10 | 1 | on server |
X356NKOS9CZG5 | Jul 22, 2026 | Android 16 | Security | 9 | 1 | on server |
X356NKOS8CZF3 | Jun 21, 2026 | Android 16 | Security | 8 | 1 | on server |
X356NKOU7CZE4 | May 20, 2026 | Android 16 | Feature | 7 | 1 | on server |
X356NKOS7BZD3 | Apr 14, 2026 | Android 16 | Security | 7 | 1 | on server |
X356NKOS6BZC2 | Mar 18, 2026 | Android 16 | Security | 6 | 1 | on server |
X356NKOS6BZB5 | Feb 22, 2026 | Android 16 | Security | 6 | 1 | on server |
X356NKOS5BZA2 | Jan 18, 2026 | Android 16 | Security | 5 | 1 | on server |
X356NKOS4BYL1 | Dec 14, 2025 | Android 16 | Security | 4 | 1 | on server |
X356NKOS4BYK2 | Nov 19, 2025 | Android 16 | Security | 4 | 1 | on server |
X356NKOU3BYJ4 | Oct 29, 2025 | Android 16 | Feature | 3 | 1 | on server |
X356NKOS3AYI3 | Sep 14, 2025 | Android 15 | Security | 3 | 1 | on server |
X356NKOU2AYH1 | Aug 13, 2025 | Android 15 | Feature | 2 | 1 | on server |
X356NKOS2AYG1 | Jul 23, 2025 | Android 15 | Security | 2 | 1 | on server |
X356NKOU1AYF1 | Jun 23, 2025 | Android 15 | Feature | 1 | 1 | on server |
X356NKOU1AYE5 | May 29, 2025 | Android 15 | Feature | 1 | 1 | on server |
X356NKOU1AYD3 | May 14, 2025 | Android 15 | Feature | 1 | 1 | on server |
How to download SM-X356N firmware
We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:
samloader download -m SM-X356N -r KOOReplace KOO with your region code. Step-by-step instructions, including a graphical alternative:
How to download Samsung firmware.
Changelog and security patch level
Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-X356N / KOO release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).