Samsung Galaxy Tab Active5 5G (SM-X306B) Firmware Overview
What is the latest SM-X306B firmware?
X306BXXSBDZF3, released June 20, 2026 for region CHO with Android 16. It is a security update on bootloader binary 11. The archive holds 4 official builds for this region.
Is the Samsung Galaxy Tab Active5 5G still getting updates?
Yes. The newest build is from June 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 11:
- Binary 11 — since Jun 2026
- Binary 10 — since Feb 2026
- Binary 9 — since Jan 2026
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.
SM-X306B firmware for region CHO
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 11 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.