Samsung Galaxy A16 5G (SM-A166P) Firmware Overview
What is the latest SM-A166P firmware?
A166PXXS9DZG1, released July 10, 2026 with Android 16. It is a security update on bootloader binary 9. The archive holds 107 official builds across 29 regions (CSC).
Is the Samsung Galaxy A16 5G still getting updates?
Yes. The newest build is from July 2026, and 21 of 29 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-A166P firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 6 to 9:
- Binary 9 — since Jul 2026
- Binary 8 — since Jun 2026
- Binary 7 — since Feb 2026
- Binary 6 — since Jan 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-A166P firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A166PXXS9DZG1
Security update
|
9 | XID | 16 |
2026-07-10 | Download |
|
A166PXXS9DZG1
Security update
|
9 | BNG | 16 |
2026-07-09 | Download |
|
A166PXXS9DZG1
Security update
|
9 | SLK | 16 |
2026-07-09 | Download |
|
A166PXXS9DZG1
Security update
|
9 | BKD | 16 |
2026-07-09 | Download |
|
A166PXXS9DZG1
Security update
|
9 | INS | 16 |
2026-07-09 | Download |
|
A166PXXS9DZG1
Security update
|
9 | NPB | 16 |
2026-07-09 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XSP | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XNZ | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | VFJ | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | SIN | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | STH | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | MM1 | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | PNG | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XSA | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | TLP | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | ACR | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XXV | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XME | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | GLB | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | THL | 16 |
2026-07-08 | Download |
|
A166PXXS9DZG1
Security update
|
9 | XTC | 16 |
2026-07-08 | Download |
|
A166PXXS8DZF2
Security update
|
8 | BNG | 16 |
2026-06-17 | Download |
|
A166PXXS8DZF2
Security update
|
8 | SLK | 16 |
2026-06-17 | Download |
|
A166PXXS8DZF2
Security update
|
8 | BKD | 16 |
2026-06-17 | Download |
|
A166PXXS8DZF2
Security update
|
8 | INS | 16 |
2026-06-17 | Download |
|
A166PXXS8DZF2
Security update
|
8 | NPB | 16 |
2026-06-17 | Download |
|
A166PXXS8DZF2
Security update
|
8 | DKR | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XFA | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | AFR | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | ECT | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XFV | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | ACR | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XID | 16 |
2026-06-12 | Download |
|
A166PXXS8DZF2
Security update
|
8 | OPS | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XSA | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XNZ | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | VFJ | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | PNG | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XSP | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | MM1 | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | STH | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | SIN | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XXV | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XME | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | THL | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | GLB | 16 |
2026-06-11 | Download |
|
A166PXXS8DZF2
Security update
|
8 | XTC | 16 |
2026-06-11 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XID | 16 |
2026-05-19 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | NPB | 16 |
2026-05-17 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | INS | 16 |
2026-05-17 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | BNG | 16 |
2026-05-17 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | SLK | 16 |
2026-05-17 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | BKD | 16 |
2026-05-17 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | PNG | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XFV | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | VFJ | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XFA | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | ACR | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | DKR | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | AFR | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | ECT | 16 |
2026-05-14 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XME | 16 |
2026-05-13 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | OPS | 16 |
2026-05-13 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | TEL | 16 |
2026-05-13 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XXV | 16 |
2026-05-13 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | XSA | 16 |
2026-05-13 | Download |
|
A166PXXU7DZE2
Feature update
|
7 | THL | 16 |
2026-05-13 | Download |
|
A166PXXS7CZB2
Security update
|
7 | BKD | 16 |
2026-03-11 | Download |
|
A166PXXS7CZB2
Security update
|
7 | BNG | 16 |
2026-03-11 | Download |
|
A166PXXS7CZB2
Security update
|
7 | SLK | 16 |
2026-03-11 | Download |
|
A166PXXS7CZB2
Security update
|
7 | NPB | 16 |
2026-03-11 | Download |
|
A166PXXS7CZB2
Security update
|
7 | INS | 16 |
2026-03-11 | Download |
|
A166PXXS7CZB2
Security update
|
7 | XSA | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | ECT | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | ACR | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | XFV | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | XFA | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | AFR | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | DKR | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | VAU | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | STH | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | TLP | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | MM1 | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | SIN | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | OPS | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | TEL | 16 |
2026-03-09 | Download |
|
A166PXXS7CZB2
Security update
|
7 | XSP | 16 |
2026-03-09 | Download |
|
A166PXXS6CZA1
Security update
|
6 | BNG | 16 |
2026-01-29 | Download |
|
A166PXXS6CZA1
Security update
|
6 | SLK | 16 |
2026-01-29 | Download |
|
A166PXXS6CZA1
Security update
|
6 | BKD | 16 |
2026-01-29 | Download |
|
A166PXXS6CZA1
Security update
|
6 | NPB | 16 |
2026-01-29 | Download |
|
A166PXXS6CZA1
Security update
|
6 | INS | 16 |
2026-01-29 | Download |
|
A166PXXS6CZA1
Security update
|
6 | AFR | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | DKR | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | ECT | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XFA | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XFV | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XID | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XSP | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | STH | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | SIN | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | MM1 | 16 |
2026-01-26 | Download |
|
A166PXXS6CZA1
Security update
|
6 | ACR | 16 |
2026-01-22 | Download |
|
A166PXXS6CZA1
Security update
|
6 | VFJ | 16 |
2026-01-22 | Download |
|
A166PXXS6CZA1
Security update
|
6 | PNG | 16 |
2026-01-22 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XSA | 16 |
2026-01-22 | Download |
|
A166PXXS6CZA1
Security update
|
6 | XNZ | 16 |
2026-01-22 | Download |
Latest SM-A166P 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 |
|---|---|---|---|---|
| ACR | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| AFR | A166PXXS8DZF2 | 8 | 16 | 2026-06-12 |
| BKD | A166PXXS9DZG1 | 9 | 16 | 2026-07-09 |
| BNG | A166PXXS9DZG1 | 9 | 16 | 2026-07-09 |
| DKR | A166PXXS8DZF2 | 8 | 16 | 2026-06-12 |
| ECT | A166PXXS8DZF2 | 8 | 16 | 2026-06-12 |
| GLB | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| INS | A166PXXS9DZG1 | 9 | 16 | 2026-07-09 |
| MM1 | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| NPB | A166PXXS9DZG1 | 9 | 16 | 2026-07-09 |
| OPS | A166PXXS8DZF2 | 8 | 16 | 2026-06-11 |
| PNG | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| SIN | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| SLK | A166PXXS9DZG1 | 9 | 16 | 2026-07-09 |
| STH | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| TEL | A166PXXU7DZE2 | 7 | 16 | 2026-05-13 |
| THL | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| TLP | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| VAU | A166PXXS7CZB2 | 7 | 16 | 2026-03-09 |
| VFJ | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XFA | A166PXXS8DZF2 | 8 | 16 | 2026-06-12 |
| XFV | A166PXXS8DZF2 | 8 | 16 | 2026-06-12 |
| XID | A166PXXS9DZG1 | 9 | 16 | 2026-07-10 |
| XME | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XNZ | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XSA | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XSP | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XTC | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
| XXV | A166PXXS9DZG1 | 9 | 16 | 2026-07-08 |
How to Flash SM-A166P Firmware
Put the Samsung Galaxy A16 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.