Samsung Galaxy Tab S10+ 5G (SM-X826N) Firmware Overview
What is the latest SM-X826N firmware?
X826NKOSBDZI3, 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+ 5G still getting updates?
Yes. The newest build is from September 2026.
Can I downgrade the SM-X826N 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-X826N firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
X826NKOSBDZI3
Security update
|
11 | KOO | 16 |
2026-09-14 | Download |
|
X826NKOSADZH1
Security update
|
10 | KOO | 16 |
2026-08-21 | Download |
|
X826NKOS9DZG1
Security update
|
9 | KOO | 16 |
2026-07-14 | Download |
|
X826NKOS8DZF2
Security update
|
8 | KOO | 16 |
2026-06-19 | Download |
|
X826NKOS7CZD3
Security update
|
7 | KOO | 16 |
2026-04-09 | Download |
|
X826NKOS7CZB5
Security update
|
7 | KOO | 16 |
2026-02-13 | Download |
|
X826NKOS6CZA3
Security update
|
6 | KOO | 16 |
2026-01-14 | Download |
|
X826NKOS5CYK1
Security update
|
5 | KOO | 16 |
2025-11-27 | Download |
|
X826NKOU4CYJ4
Feature update
|
4 | KOO | 16 |
2025-10-24 | Download |
|
X826NKOU7DZE3
Feature update
|
7 | KOO | — |
N/A | Download |
How to Flash SM-X826N Firmware
Put the Samsung Galaxy Tab S10+ 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.