Galaxy Tab Active5 5G SM-X306B updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Tab Active5 5G (SM-X306B). The latest stable build is X306BXXSEDZI1 (Android 16, security update), first released on Sep 20, 2026. Samsung has published 36 stable builds for this model since Dec 11, 2023: 23 security and 13 feature updates, from Android 14 to Android 16. The current bootloader (binary) version is 14. A device on bit 14 only accepts firmware with bit 14 or higher – see downgrading and the bootloader bit.

Latest build

X306BXXSEDZI1

Released

Sep 20, 2026

Android

Android 16

Bootloader bit

14

Regions

33

Stable builds

36

Update policy

Samsung promised 4 major Android upgrades and 5 years of security updates for the Galaxy Tab Active5 5G, counted from its launch in December 2023 with Android 14. That makes Android 18 (One UI 10) the last major version and security updates continue until about December 2028. It is currently on Android 16 (One UI 8), so 2 major upgrades are still to come.

OS upgrades promised

4

Security updates

5 years

Last major version

Android 18 (One UI 10)

Security support until

December 2028

Current version

Android 16 (One UI 8)

Status

Supported

Source: Samsung. Samsung counts from the global launch and does not publish exact end dates; the dates above are launch month plus the promised years.

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.

Firmware history (36 builds)

Every stable build (PDA version) Samsung has published for the SM-X306B, 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).

How to download SM-X306B 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-X306B -r EUX

Replace EUX 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-X306B / EUX 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).