Samsung Galaxy Tab Active5 5G (SM-X306B) Firmware Overview
What is the latest SM-X306B firmware?
X306BXXSCDZG1, released July 15, 2026 for region MXO with Android 16. It is a security update on bootloader binary 12. The archive holds 5 official builds for this region.
Is the Samsung Galaxy Tab Active5 5G still getting updates?
Yes. The newest build is from July 2026.
Can I downgrade the SM-X306B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 9 to 12:
- Binary 12 — since Jul 2026
- Binary 11 — since Jun 2026
- Binary 10 — since Feb 2026
- Binary 9 — 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.
SM-X306B firmware for region MXO
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
X306BXXSCDZG1
Security update
|
12 | MXO | 16 |
2026-07-15 | Download |
|
X306BXXSBDZF3
Security update
|
11 | MXO | 16 |
2026-06-20 | Download |
|
X306BXXUADZE3
Feature update
|
10 | MXO | 16 |
2026-05-16 | Download |
|
X306BXXSACZB3
Security update
|
10 | MXO | 16 |
2026-03-11 | Download |
|
X306BXXS9CZA3
Security update
|
9 | MXO | 16 |
2026-02-05 | Download |
How to Flash SM-X306B Firmware
Put the Samsung Galaxy Tab Active5 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 12 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.