A166EXXU8DZE9 – Galaxy A16 5G firmware
Build A166EXXU8DZE9 is a feature update for the Galaxy A16 5G (SM-A166E)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 3, 2026 (method) and has reached
4 regions so far. It keeps bootloader bit 8, so downgrading to the previous build A166EXXS8CZDG is still possible. Samsung still serves this file.
- Model
- SM-A166E
- Android
- Android 16
- Type
- Feature
- Bootloader bit
- 8
- First released
- Jun 3, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received A166EXXU8DZE9, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KSA | Saudi Arabia | Jun 3, 2026 | day 0 | A166EXXU8DZE9/A166EOJM8DZE9/A166EXXU8DZE9 |
MID | Middle East | Jun 3, 2026 | day 0 | A166EXXU8DZE9/A166EOJM8DZE9/A166EXXU8DZE9 |
TUN | Tunisia | Jun 3, 2026 | day 0 | A166EXXU8DZE9/A166EOJM8DZE9/A166EXXU8DZE9 |
XSG | United Arab Emirates | Jun 3, 2026 | day 0 | A166EXXU8DZE9/A166EOJM8DZE9/A166EXXU8DZE9 |
Download and release notes
samloader download -m SM-A166E -r KSA -v A166EXXU8DZE9/A166EOJM8DZE9/A166EXXU8DZE9Samsung's release notes and security patch level for this update: SM-A166E / KSA on doc.samsungmobile.com. What each part of the build number means: decode A166EXXU8DZE9.