Samsung Galaxy Tab S10 Ultra 5G (SM-X926N) Firmware Overview
What is the latest SM-X926N firmware?
X926NKOSBDZI3, released September 14, 2026 with Android 16. It is a security update on bootloader binary 11. The archive holds 10 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Tab S10 Ultra 5G still getting updates?
Yes. The newest build is from September 2026.
Can I downgrade the SM-X926N 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 11:
- Binary 11 — since Sep 2026
- Binary 10 — since Aug 2026
- Binary 9 — since Jul 2026
- Binary 8 — since Jun 2026
- Binary 7 — since Feb 2026
- Binary 6 — since Jan 2026
- Binary 5 — since Nov 2025
- Binary 4 — since Oct 2025
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.
All SM-X926N firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
X926NKOSBDZI3
Security update
|
11 | KOO | 16 |
2026-09-14 | Download |
|
X926NKOSADZH1
Security update
|
10 | KOO | 16 |
2026-08-22 | Download |
|
X926NKOS9DZG1
Security update
|
9 | KOO | 16 |
2026-07-15 | Download |
|
X926NKOS8DZF2
Security update
|
8 | KOO | 16 |
2026-06-19 | Download |
|
X926NKOS7CZD3
Security update
|
7 | KOO | 16 |
2026-04-09 | Download |
|
X926NKOS7CZB5
Security update
|
7 | KOO | 16 |
2026-02-13 | Download |
|
X926NKOS6CZA3
Security update
|
6 | KOO | 16 |
2026-01-14 | Download |
|
X926NKOS5CYK1
Security update
|
5 | KOO | 16 |
2025-11-27 | Download |
|
X926NKOU4CYJ4
Feature update
|
4 | KOO | 16 |
2025-10-24 | Download |
|
X926NKOU7DZE3
Feature update
|
7 | KOO | — |
N/A | Download |
How to Flash SM-X926N 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.