A566WVLSBCZI2 – Galaxy A56 5G firmware
Build A566WVLSBCZI2 is a security update for the Galaxy A56 5G (SM-A566W)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 17, 2026 (method) and has reached
8 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to A566WVLSACZHB is blocked. Samsung still serves this file.
- Model
- SM-A566W
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 11
- First released
- Sep 17, 2026
- Regions
- 8
Rollout timeline by region
The date each region code (CSC) first received A566WVLSBCZI2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ESK | Canada (Eastlink) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
FMC | Canada (Fido) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
GLW | Canada (Freedom) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
KDO | Canada (Koodo) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
RWC | Canada (Rogers) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
TLS | Canada (Telus) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
VTR | Canada (Videotron) | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
XAC | Canada | Sep 17, 2026 | day 0 | A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2 |
Download and release notes
samloader download -m SM-A566W -r ESK -v A566WVLSBCZI2/A566WOYVBCZI2/A566WVLSBCZI2Samsung's release notes and security patch level for this update: SM-A566W / ESK on doc.samsungmobile.com. What each part of the build number means: decode A566WVLSBCZI2.