Galaxy A16 5G SM-A166E firmware
The latest stable build is A166EXXUAEZJ5 (Android 17, feature update), first released on Oct 26, 2026 – 11 days ago. Samsung has published 18 stable builds for this model since Oct 21, 2024: 11 security and 7 feature updates, from Android 14 to Android 17. The current bootloader (binary) version is 10. A device on bit 10 only accepts firmware with bit 10 or higher – see downgrading and the bootloader bit.
- Latest build
A166EXXUAEZJ5- Released
- Oct 26, 2026
- Android
- Android 17
- Bootloader bit
- 10
- Regions
- 4
- Stable builds
- 18
Latest firmware by region (CSC)
Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.
| CSC | Region | Latest build | Android | Released | Builds |
|---|---|---|---|---|---|
KSA | Saudi Arabia | A166EXXUAEZJ5 | Android 17 | Oct 26, 2026 | 18 |
MID | Middle East | A166EXXUAEZJ5 | Android 17 | Oct 26, 2026 | 18 |
TUN | Tunisia | A166EXXUAEZJ5 | Android 17 | Oct 26, 2026 | 17 |
XSG | United Arab Emirates | A166EXXUAEZJ5 | Android 17 | Oct 26, 2026 | 18 |
Firmware history (18 builds)
Every stable build (PDA version) Samsung has published for the SM-A166E, newest first. “” is the earliest date the build appeared on Samsung's servers in any region. “” means Samsung no longer serves the file for that build.
| Build (PDA) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
A166EXXUAEZJ5 | Oct 26, 2026 | Android 17 | Feature | 10 | 4 | on server |
A166EXXSADZH1 | Sep 6, 2026 | Android 16 | Security | 10 | 4 | on server |
A166EXXS9DZG1 | Jul 27, 2026 | Android 16 | Security | 9 | 4 | on server |
A166EXXU8DZE9 | Jun 3, 2026 | Android 16 | Feature | 8 | 4 | on server |
A166EXXS8CZDG | May 5, 2026 | Android 16 | Security | 8 | 4 | on server |
A166EXXS7CZB6 | Mar 9, 2026 | Android 16 | Security | 7 | 4 | on server |
A166EXXS6CZA8 | Feb 2, 2026 | Android 16 | Security | 6 | 4 | on server |
A166EXXS5CYL1 | Dec 22, 2025 | Android 16 | Security | 5 | 4 | on server |
A166EXXS4CYJ1 | Oct 29, 2025 | Android 16 | Security | 4 | 4 | on server |
A166EXXU4CYI8 | Oct 5, 2025 | Android 16 | Feature | 4 | 4 | on server |
A166EXXS4BYG1 | Jul 28, 2025 | Android 15 | Security | 4 | 4 | on server |
A166EXXU3BYEC | Jun 16, 2025 | Android 15 | Feature | 3 | 4 | on server |
A166EXXS3AYE1 | Jun 5, 2025 | Android 14 | Security | 3 | 4 | on server |
A166EXXS3AYC1 | Apr 9, 2025 | Android 14 | Security | 3 | 4 | on server |
A166EXXS3AYA2 | Jan 23, 2025 | Android 14 | Security | 3 | 4 | on server |
A166EXXU3AXK6 | Dec 10, 2024 | Android 14 | Feature | 3 | 4 | on server |
A166EXXU2AXJ2 | Oct 23, 2024 | Android 14 | Feature | 2 | 4 | on server |
A166EXXU1AXI6 | Oct 21, 2024 | Android 14 | Feature | 1 | 3 | on server |
How to download SM-A166E firmware
We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:
samloader download -m SM-A166E -r XSGReplace XSG with your region code. Step-by-step instructions, including a graphical alternative:
How to download Samsung firmware.
Changelog and security patch level
Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-A166E / XSG release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.