G990WVLSKIYK2 – Galaxy S21 FE 5G firmware

Build G990WVLSKIYK2 is a security update for the Galaxy S21 FE 5G (SM-G990W) on Android 16 (One UI 8). It first appeared on Samsung's servers on Dec 11, 2025 (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 G990WVLUJIYJ1 is blocked. Samsung still serves this file.

Model
SM-G990W
Android
Android 16
Type
Security
Bootloader bit
20
First released
Dec 11, 2025
Regions
11

Rollout timeline by region

The date each region code (CSC) first received G990WVLSKIYK2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BMCCanada (Bell)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
BWACanadaDec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
ESKCanada (Eastlink)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
FMCCanada (Fido)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
GLWCanada (Freedom)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
KDOCanada (Koodo)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
RWCCanada (Rogers)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
TLSCanada (Telus)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
VMCCanada (Virgin)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
VTRCanada (Videotron)Dec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2
XACCanadaDec 11, 2025day 0G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2

Download and release notes

samloader download -m SM-G990W -r BMC -v G990WVLSKIYK2/G990WOYVKIYK2/G990WVLSKIYK2

Samsung's release notes and security patch level for this update: SM-G990W / BMC on doc.samsungmobile.com. What each part of the build number means: decode G990WVLSKIYK2.