Samsung Galaxy Tab S10 Lite (SM-X406B) Firmware Overview
What is the latest SM-X406B firmware?
X406BXXS6CZG3, released July 16, 2026 for region TUN with Android 16. It is a security update on bootloader binary 6. The archive holds 3 official builds for this region.
Is the Samsung Galaxy Tab S10 Lite still getting updates?
Yes. The newest build is from July 2026.
Can I downgrade the SM-X406B 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 6:
- Binary 6 — since Jul 2026
- Binary 5 — since Jun 2026
- Binary 4 — since May 2026
A phone already on binary 6 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 6 build. How to read a build number.
SM-X406B firmware for region TUN
How to Flash SM-X406B Firmware
Put the Samsung Galaxy Tab S10 Lite 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 6 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.