A546WVLSKFZH3 – Galaxy A54 5G firmware

Build A546WVLSKFZH3 is a security update for the Galaxy A54 5G (SM-A546W) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 3, 2026 (method) and has reached 11 regions so far. It raises the bootloader bit from 19 to 20: once installed, the device no longer accepts firmware with bit 19 or lower, so a downgrade to A546WVLSJFZG3 is blocked. Samsung still serves this file.

Model
SM-A546W
Android
Android 16
Type
Security
Bootloader bit
20
First released
Sep 3, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received A546WVLSKFZH3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BMCCanada (Bell)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
BWACanadaSep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
ESKCanada (Eastlink)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
FMCCanada (Fido)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
GLWCanada (Freedom)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
KDOCanada (Koodo)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
RWCCanada (Rogers)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
TLSCanada (Telus)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
VMCCanada (Virgin)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
VTRCanada (Videotron)Sep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3
XACCanadaSep 3, 2026day 0A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3

Download and release notes

samloader download -m SM-A546W -r BMC -v A546WVLSKFZH3/A546WOYVKFZH3/A546WVLSKFZH3

Samsung's release notes and security patch level for this update: SM-A546W / BMC on doc.samsungmobile.com. What each part of the build number means: decode A546WVLSKFZH3.