A546WVLSLFZI2 – Galaxy A54 5G firmware

Build A546WVLSLFZI2 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 Oct 4, 2026 (method) and has reached 11 regions so far. It raises the bootloader bit from 20 to 21: once installed, the device no longer accepts firmware with bit 20 or lower, so a downgrade to A546WVLSKFZH3 is blocked. Samsung still serves this file.

Model
SM-A546W
Android
Android 16
Type
Security
Bootloader bit
21
First released
Oct 4, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received A546WVLSLFZI2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BMCCanada (Bell)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
BWACanadaOct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
ESKCanada (Eastlink)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
FMCCanada (Fido)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
GLWCanada (Freedom)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
KDOCanada (Koodo)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
RWCCanada (Rogers)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
TLSCanada (Telus)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
VMCCanada (Virgin)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
VTRCanada (Videotron)Oct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2
XACCanadaOct 4, 2026day 0A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2

Download and release notes

samloader download -m SM-A546W -r BMC -v A546WVLSLFZI2/A546WOYVLFZI2/A546WVLSLFZI2

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 A546WVLSLFZI2.