A566WVLS9CZG7 – Galaxy A56 5G firmware

Build A566WVLS9CZG7 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 Jul 26, 2026 (method) and has reached 8 regions so far. It raises the bootloader bit from 7 to 9: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to A566WVLS7CZE5 is blocked. Samsung still serves this file.

Model
SM-A566W
Android
Android 16
Type
Security
Bootloader bit
9
First released
Jul 26, 2026
Regions
8

Rollout timeline by region

The date each region code (CSC) first received A566WVLS9CZG7, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ESKCanada (Eastlink)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
FMCCanada (Fido)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
GLWCanada (Freedom)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
KDOCanada (Koodo)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
RWCCanada (Rogers)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
TLSCanada (Telus)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
VTRCanada (Videotron)Jul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7
XACCanadaJul 26, 2026day 0A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7

Download and release notes

samloader download -m SM-A566W -r ESK -v A566WVLS9CZG7/A566WOYV9CZG7/A566WVLS9CZG7

Samsung'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 A566WVLS9CZG7.