Samsung Galaxy M16 5G (SM-M166P) Firmware Overview
What is the latest SM-M166P firmware?
M166PXXS7DZG1, released July 9, 2026 with Android 16. It is a security update on bootloader binary 7. The archive holds 24 official builds across 2 regions (CSC).
Is the Samsung Galaxy M16 5G still getting updates?
Yes. The newest build is from July 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-M166P builds in the archive run Android 14 to 16. The earliest build we have for each version:
- Android 16: M166PXXU3CYI9 (Oct 2025), 16 builds in total
- Android 15: M166PXXU2BYE5 (May 2025), 4 builds in total
- Android 14: M166PXXU1AYA5 (Feb 2025), 4 builds in total
Can I downgrade the SM-M166P 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 7:
- Binary 7 — since Jul 2026
- Binary 6 — since Jun 2026
- Binary 5 — since Feb 2026
- Binary 4 — since Jan 2026
- Binary 3 — since Jul 2025
- Binary 2 — since Mar 2025
- Binary 1 — since Jan 2025
A phone already on binary 7 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 7 build. How to read a build number.
All SM-M166P firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
M166PXXS7DZG1
Security update
|
7 | NPB | 16 |
2026-07-09 | Download |
|
M166PXXS7DZG1
Security update
|
7 | INS | 16 |
2026-07-09 | Download |
|
M166PXXS6DZF2
Security update
|
6 | NPB | 16 |
2026-06-17 | Download |
|
M166PXXS6DZF2
Security update
|
6 | INS | 16 |
2026-06-17 | Download |
|
M166PXXU5DZE2
Feature update
|
5 | NPB | 16 |
2026-05-17 | Download |
|
M166PXXU5DZE2
Feature update
|
5 | INS | 16 |
2026-05-17 | Download |
|
M166PXXS5CZD2
Security update
|
5 | INS | 16 |
2026-04-29 | Download |
|
M166PXXS5CZD2
Security update
|
5 | NPB | 16 |
2026-04-29 | Download |
|
M166PXXS5CZB4
Security update
|
5 | NPB | 16 |
2026-03-11 | Download |
|
M166PXXS5CZB4
Security update
|
5 | INS | 16 |
2026-03-11 | Download |
|
M166PXXS4CZA1
Security update
|
4 | NPB | 16 |
2026-01-28 | Download |
|
M166PXXS4CZA1
Security update
|
4 | INS | 16 |
2026-01-28 | Download |
|
M166PXXS3CYJ1
Security update
|
3 | NPB | 16 |
2025-10-29 | Download |
|
M166PXXS3CYJ1
Security update
|
3 | INS | 16 |
2025-10-29 | Download |
|
M166PXXU3CYI9
Feature update
|
3 | INS | 16 |
2025-10-09 | Download |
|
M166PXXU3CYI9
Feature update
|
3 | NPB | 16 |
2025-10-09 | Download |
|
M166PXXS3BYG1
Security update
|
3 | NPB | 15 |
2025-07-28 | Download |
|
M166PXXS3BYG1
Security update
|
3 | INS | 15 |
2025-07-28 | Download |
|
M166PXXU2BYE5
Feature update
|
2 | NPB | 15 |
2025-06-02 | Download |
|
M166PXXU2BYE5
Feature update
|
2 | INS | 15 |
2025-05-28 | Download |
|
M166PXXS2AYC1
Security update
|
2 | NPB | 14 |
2025-04-15 | Download |
|
M166PXXS2AYC1
Security update
|
2 | INS | 14 |
2025-04-15 | Download |
|
M166PXXU1AYA5
Feature update
|
1 | NPB | 14 |
2025-02-03 | Download |
|
M166PXXU1AYA5
Feature update
|
1 | INS | 14 |
2025-02-03 | Download |
Latest SM-M166P 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 |
|---|---|---|---|---|
| INS | M166PXXS7DZG1 | 7 | 16 | 2026-07-09 |
| NPB | M166PXXS7DZG1 | 7 | 16 | 2026-07-09 |
How to Flash SM-M166P Firmware
Put the Samsung Galaxy M16 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 7 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.