G996U1UESGHYF1 – Galaxy S21+ 5G firmware

Build G996U1UESGHYF1 is a security update for the Galaxy S21+ 5G (SM-G996U1) on Android 15 (One UI 7). It first appeared on Samsung's servers on Jun 25, 2025 (method) and has reached 15 regions so far. It raises the bootloader bit from 15 to 16: once installed, the device no longer accepts firmware with bit 15 or lower, so a downgrade to G996U1UESFHYE1 is blocked. Samsung still serves this file.

Model
SM-G996U1
Android
Android 15
Type
Security
Bootloader bit
16
First released
Jun 25, 2025
Regions
15

Rollout timeline by region

The date each region code (CSC) first received G996U1UESGHYF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
AIOUSA (Cricket)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
ATTUSA (AT&T)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
CCTUSA (Comcast)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
DSHUSAJun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
LRAUSA (Bluegrass)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
SPRUSA (Sprint)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
TFNUSA (TracFone)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
TMBUSA (T-Mobile)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
TMKUSA (MetroPCS)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
USCUSA (US Cellular)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
VZWUSA (Verizon)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
XAAUSA (unlocked)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
XARUSA (Cellular South)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1
XASUSA (Sprint)Jun 25, 2025day 0G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1

Download and release notes

samloader download -m SM-G996U1 -r XAA -v G996U1UESGHYF1/G996U1OYMGHYF1/G996U1UESGHYF1

Samsung's release notes and security patch level for this update: SM-G996U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode G996U1UESGHYF1.