S366VUDSACZH1 – Galaxy A36 5G firmware
Build S366VUDSACZH1 is a security update for the Galaxy A36 5G (SM-S366V)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 9, 2026 (method) and has reached
1 region so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to S366VUDS9CZG2 is blocked. Samsung still serves this file.
- Model
- SM-S366V
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 10
- First released
- Sep 9, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received S366VUDSACZH1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
TFN | USA (TracFone) | Sep 9, 2026 | day 0 | S366VUDSACZH1/S366VTFNACZH1/S366VUDSACZH1 |
Download and release notes
samloader download -m SM-S366V -r TFN -v S366VUDSACZH1/S366VTFNACZH1/S366VUDSACZH1Samsung's release notes and security patch level for this update: SM-S366V / TFN on doc.samsungmobile.com. What each part of the build number means: decode S366VUDSACZH1.