Samsung Galaxy A06 5G (SM-A066B) Firmware Overview
What is the latest SM-A066B firmware?
A066BXXS8CZI1, released September 10, 2026 with Android 16. It is a security update on bootloader binary 8. The archive holds 81 official builds across 15 regions (CSC).
Is the Samsung Galaxy A06 5G still getting updates?
Yes. The newest build is from September 2026, and 15 of 15 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-A066B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 3 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 Oct 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-A066B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A066BXXS8CZI1
Security update
|
8 | INS | 16 |
2026-09-10 | Download |
|
A066BXXS8CZI1
Security update
|
8 | PNG | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XTC | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XID | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XXV | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | THL | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | DKR | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XSP | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XNZ | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | ECT | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XFA | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | VFJ | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | XME | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | AFR | 16 |
2026-09-08 | Download |
|
A066BXXS8CZI1
Security update
|
8 | GLB | 16 |
2026-09-08 | Download |
|
A066BXXS7CZF2
Security update
|
7 | DKR | 16 |
2026-06-12 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XFA | 16 |
2026-06-12 | Download |
|
A066BXXS7CZF2
Security update
|
7 | AFR | 16 |
2026-06-12 | Download |
|
A066BXXS7CZF2
Security update
|
7 | ECT | 16 |
2026-06-12 | Download |
|
A066BXXS7CZF2
Security update
|
7 | THL | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XTC | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | GLB | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XME | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XID | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XXV | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XSP | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | XNZ | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | PNG | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | VFJ | 16 |
2026-06-11 | Download |
|
A066BXXS7CZF2
Security update
|
7 | INS | 16 |
2026-06-10 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XID | 16 |
2026-06-02 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | THL | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | INS | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XSP | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XNZ | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XME | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XTC | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | GLB | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | PNG | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | VFJ | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XXV | 16 |
2026-05-19 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | ECT | 16 |
2026-05-18 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | XFA | 16 |
2026-05-18 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | AFR | 16 |
2026-05-18 | Download |
|
A066BXXU6CZE6
Feature update
|
6 | DKR | 16 |
2026-05-18 | Download |
|
A066BXXS6BZE1
Security update
|
6 | INS | 16 |
2026-05-13 | Download |
|
A066BXXS5BZB8
Security update
|
5 | PNG | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XSP | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XNZ | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XME | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | THL | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | GLB | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XID | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XXV | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XTC | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | VFJ | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | DKR | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | AFR | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | XFA | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB8
Security update
|
5 | ECT | 16 |
2026-03-09 | Download |
|
A066BXXS5BZB6
Security update
|
5 | INS | 16 |
2026-03-02 | Download |
|
A066BXXS4BZA4
Security update
|
4 | DKR | 16 |
2026-02-12 | Download |
|
A066BXXS4BZA4
Security update
|
4 | AFR | 16 |
2026-02-12 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XFA | 16 |
2026-02-12 | Download |
|
A066BXXS4BZA4
Security update
|
4 | ECT | 16 |
2026-02-12 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XSP | 16 |
2026-02-09 | Download |
|
A066BXXS4BZA4
Security update
|
4 | VFJ | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XXV | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XME | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XNZ | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | GLB | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XID | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | XTC | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | THL | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA4
Security update
|
4 | PNG | 16 |
2026-02-05 | Download |
|
A066BXXS4BZA1
Security update
|
4 | INS | 16 |
2026-01-27 | Download |
|
A066BXXU3BYJ4
Feature update
|
3 | VFJ | 16 |
2025-11-17 | Download |
|
A066BXXU3BYJ4
Feature update
|
3 | PNG | 16 |
2025-11-17 | Download |
|
A066BXXU3BYJ4
Feature update
|
3 | XNZ | 16 |
2025-11-17 | Download |
|
A066BXXS3BYJ7
Security update
|
3 | INS | 16 |
2025-11-11 | Download |
|
A066BXXU3BYJ4
Feature update
|
3 | XSP | 16 |
2025-11-11 | Download |
Latest SM-A066B 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 |
|---|---|---|---|---|
| AFR | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| DKR | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| ECT | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| GLB | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| INS | A066BXXS8CZI1 | 8 | 16 | 2026-09-10 |
| PNG | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| THL | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| VFJ | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XFA | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XID | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XME | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XNZ | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XSP | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XTC | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
| XXV | A066BXXS8CZI1 | 8 | 16 | 2026-09-08 |
How to Flash SM-A066B 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 8 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.