Samsung Galaxy Tab S10 Ultra 5G (SM-X926B) Firmware Overview
What is the latest SM-X926B firmware?
X926BXXSBDZI2, released September 5, 2026 for region MM1 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 S10 Ultra 5G still getting updates?
Yes. The newest build is from September 2026.
Can I downgrade the SM-X926B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 6 to 11:
- Binary 11 — since Sep 2026
- Binary 9 — since Jul 2026
- Binary 7 — since Feb 2026
- Binary 6 — 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-X926B firmware for region MM1
How to Flash SM-X926B Firmware
Put the Samsung Galaxy Tab S10 Ultra 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.