G990USQSNIZF2 – Galaxy S21 FE 5G firmware

Build G990USQSNIZF2 is a security update for the Galaxy S21 FE 5G (SM-G990U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 30, 2026 (method) and has reached 9 regions so far. It keeps bootloader bit 23, so downgrading to the previous build G990USQSNIZE3 is still possible. Samsung still serves this file.

Model
SM-G990U
Android
Android 16
Type
Security
Bootloader bit
23
First released
Jun 30, 2026
Regions
9

Rollout timeline by region

The date each region code (CSC) first received G990USQSNIZF2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
AIOUSA (Cricket)Jun 30, 2026day 0G990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
ATTUSA (AT&T)Jun 30, 2026day 0G990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
DSAUSAJun 30, 2026day 0G990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
DSHUSAJun 30, 2026day 0G990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
VZWUSA (Verizon)Jul 1, 2026+1 dayG990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
TMBUSA (T-Mobile)Jul 1, 2026+1 dayG990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
TMKUSA (MetroPCS)Jul 1, 2026+1 dayG990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
USCUSA (US Cellular)Jul 2, 2026+2 daysG990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2
CCTUSA (Comcast)Jul 13, 2026+13 daysG990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2

Download and release notes

samloader download -m SM-G990U -r AIO -v G990USQSNIZF2/G990UOYNNIZF2/G990USQSNIZF2

Samsung's release notes and security patch level for this update: SM-G990U / AIO on doc.samsungmobile.com. What each part of the build number means: decode G990USQSNIZF2.