A566WVLUBDZJ1 – Galaxy A56 5G firmware

Build A566WVLUBDZJ1 is a feature update for the Galaxy A56 5G (SM-A566W) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 26, 2026 (method) and has reached 8 regions so far. It keeps bootloader bit 11, so downgrading to the previous build A566WVLSBCZI2 is still possible. Samsung still serves this file.

Model
SM-A566W
Android
Android 17
Type
Feature
Bootloader bit
11
First released
Oct 26, 2026
Regions
8

Not yet released in 3 regions that are still on an older build: BMC, BWA, VMC.

Rollout timeline by region

The date each region code (CSC) first received A566WVLUBDZJ1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ESKCanada (Eastlink)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
FMCCanada (Fido)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
GLWCanada (Freedom)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
KDOCanada (Koodo)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
RWCCanada (Rogers)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
TLSCanada (Telus)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
VTRCanada (Videotron)Oct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1
XACCanadaOct 26, 2026day 0A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1

Download and release notes

samloader download -m SM-A566W -r ESK -v A566WVLUBDZJ1/A566WOYVBDZJ1/A566WVLUBDZJ1

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 A566WVLUBDZJ1.