A166WVLS8DZG1 – Galaxy A16 5G firmware

Build A166WVLS8DZG1 is a security update for the Galaxy A16 5G (SM-A166W) on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 6, 2026 (method) and has reached 11 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to A166WVLU7DZE9 is blocked. Samsung still serves this file.

Model
SM-A166W
Android
Android 16
Type
Security
Bootloader bit
8
First released
Aug 6, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received A166WVLS8DZG1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BMCCanada (Bell)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
BWACanadaAug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
ESKCanada (Eastlink)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
FMCCanada (Fido)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
GLWCanada (Freedom)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
KDOCanada (Koodo)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
RWCCanada (Rogers)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
TLSCanada (Telus)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
VMCCanada (Virgin)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
VTRCanada (Videotron)Aug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1
XACCanadaAug 6, 2026day 0A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1

Download and release notes

samloader download -m SM-A166W -r BMC -v A166WVLS8DZG1/A166WOYV8DZG1/A166WVLS8DZG1

Samsung's release notes and security patch level for this update: SM-A166W / BMC on doc.samsungmobile.com. What each part of the build number means: decode A166WVLS8DZG1.