Samsung Galaxy A06 5G (SM-A066M) Firmware Overview
What is the latest SM-A066M firmware?
A066MUBU9DZJ7, released October 22, 2026 with Android 17. It is a feature update on bootloader binary 9. The archive holds 20 official builds across 18 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy A06 5G still getting updates?
Yes. The newest build is from October 2026, and 1 of 18 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-A066M builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: A066MUBU9DZJ7 (Oct 2026), 1 build in total
- Android 16: A066MUBS8CZH1 (Jul 2026), 19 builds in total
Can I downgrade the SM-A066M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 8 to 9:
- Binary 9 — since Sep 2026
- Binary 8 — since Aug 2026
A phone already on binary 9 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 9 build. How to read a build number.
All SM-A066M firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A066MUBU9DZJ7
Feature update
|
9 | GTO | 17 |
2026-10-22 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CDR | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | ZTO | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | PEO | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | ZTM | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | ZVV | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | UYO | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | ZTA | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | TCE | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | UFU | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | PNT | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CHT | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CHE | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CHO | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | PGU | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CHL | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | SAM | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | CTU | 16 |
2026-09-05 | Download |
|
A066MUBS9CZI1
Security update
|
9 | GTO | 16 |
2026-09-05 | Download |
|
A066MUBS8CZH1
Security update
|
8 | SAM | 16 |
2026-07-28 | Download |
Latest SM-A066M 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 |
|---|---|---|---|---|
| CDR | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| CHE | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| CHL | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| CHO | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| CHT | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| CTU | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| GTO | A066MUBU9DZJ7 | 9 | 17 | 2026-10-22 |
| PEO | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| PGU | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| PNT | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| SAM | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| TCE | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| UFU | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| UYO | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| ZTA | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| ZTM | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| ZTO | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
| ZVV | A066MUBS9CZI1 | 9 | 16 | 2026-09-05 |
How to Flash SM-A066M Firmware
Put the Samsung Galaxy A06 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 9 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.