Samsung Galaxy Tab S12+ 5G (SM-X846N) Firmware Overview
What is the latest SM-X846N firmware?
X846NKOU2AZJA, released November 2, 2026 with Android 17. It is a feature update on bootloader binary 2. The archive holds 2 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 S12+ 5G still getting updates?
Yes. The newest build is from November 2026.
Can I downgrade the SM-X846N firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 2:
- Binary 2 — since Oct 2026
- Binary 1 — since Aug 2026
A phone already on binary 2 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 2 build. How to read a build number.
All SM-X846N firmware builds
How to Flash SM-X846N Firmware
Put the Samsung Galaxy Tab S12+ 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 2 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.