Samsung Galaxy M06 5G (SM-M066B) Firmware Overview
What is the latest SM-M066B firmware?
M066BXXU8DZJ7, released October 21, 2026 with Android 17. It is a feature update on bootloader binary 8. The archive holds 20 official builds across 2 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy M06 5G still getting updates?
Yes. The newest build is from October 2026, and 2 of 2 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-M066B builds in the archive run Android 15 to 17. The earliest build we have for each version:
- Android 17: M066BXXU8DZJ7 (Oct 2026), 2 builds in total
- Android 16: M066BXXU3BYI8 (Oct 2025), 13 builds in total
- Android 15: M066BXXU1AYB3 (Feb 2025), 5 builds in total
Can I downgrade the SM-M066B 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 8:
- Binary 8 — since Sep 2026
- Binary 7 — since Jun 2026
- Binary 6 — since May 2026
- Binary 5 — since Feb 2026
- Binary 4 — since Jan 2026
- Binary 3 — since Jul 2025
- Binary 2 — since Apr 2025
- Binary 1 — since Feb 2025
A phone already on binary 8 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 8 build. How to read a build number.
All SM-M066B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
M066BXXU8DZJ7
Feature update
|
8 | BNG | 17 |
2026-10-21 | Download |
|
M066BXXU8DZJ7
Feature update
|
8 | INS | 17 |
2026-10-21 | Download |
|
M066BXXS8CZI1
Security update
|
8 | INS | 16 |
2026-09-12 | Download |
|
M066BXXS8CZI1
Security update
|
8 | BNG | 16 |
2026-09-12 | Download |
|
M066BXXS7CZF2
Security update
|
7 | BNG | 16 |
2026-06-10 | Download |
|
M066BXXS7CZF2
Security update
|
7 | INS | 16 |
2026-06-10 | Download |
|
M066BXXU6CZE6
Feature update
|
6 | INS | 16 |
2026-05-19 | Download |
|
M066BXXU6CZE6
Feature update
|
6 | BNG | 16 |
2026-05-19 | Download |
|
M066BXXS6BZE1
Security update
|
6 | INS | 16 |
2026-05-07 | Download |
|
M066BXXS6BZE2
Security update
|
6 | BNG | 16 |
2026-05-07 | Download |
|
M066BXXU5BZC4
Feature update
|
5 | BNG | 16 |
2026-03-31 | Download |
|
M066BXXS5BZB6
Security update
|
5 | INS | 16 |
2026-03-10 | Download |
|
M066BXXS4BZA1
Security update
|
4 | INS | 16 |
2026-02-03 | Download |
|
M066BXXS3BYJ7
Security update
|
3 | INS | 16 |
2025-11-27 | Download |
|
M066BXXU3BYI8
Feature update
|
3 | INS | 16 |
2025-10-16 | Download |
|
M066BXXS3AYI2
Security update
|
3 | INS | 15 |
2025-09-22 | Download |
|
M066BXXS3AYG1
Security update
|
3 | INS | 15 |
2025-07-30 | Download |
|
M066BXXS2AYD2
Security update
|
2 | INS | 15 |
2025-04-08 | Download |
|
M066BXXU1AYC3
Feature update
|
1 | INS | 15 |
2025-03-24 | Download |
|
M066BXXU1AYB3
Feature update
|
1 | INS | 15 |
2025-02-25 | Download |
Latest SM-M066B Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| BNG | M066BXXU8DZJ7 | 8 | 17 | 2026-10-21 |
| INS | M066BXXU8DZJ7 | 8 | 17 | 2026-10-21 |
How to Flash SM-M066B Firmware
Put the Samsung Galaxy M06 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 8 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.