G981U1UESCHYC1 – Galaxy S20 5G firmware

Build G981U1UESCHYC1 is a security update for the Galaxy S20 5G (SM-G981U1) on Android 13 (One UI 5). It first appeared on Samsung's servers on Apr 2, 2025 (method) and has reached 16 regions so far. It keeps bootloader bit 12, so downgrading to the previous build G981U1UESCHXL1 is still possible. Samsung still serves this file.

Model
SM-G981U1
Android
Android 13
Type
Security
Bootloader bit
12
First released
Apr 2, 2025
Regions
16

Rollout timeline by region

The date each region code (CSC) first received G981U1UESCHYC1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
AIOUSA (Cricket)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
ATTUSA (AT&T)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
BSTUSA (Boost)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
CCTUSA (Comcast)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
DSHUSAApr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
LRAUSA (Bluegrass)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
SPRUSA (Sprint)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
TFNUSA (TracFone)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
TMBUSA (T-Mobile)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
TMKUSA (MetroPCS)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
USCUSA (US Cellular)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
VZWUSA (Verizon)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
XAAUSA (unlocked)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
XARUSA (Cellular South)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1
XASUSA (Sprint)Apr 2, 2025day 0G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1

Download and release notes

samloader download -m SM-G981U1 -r XAA -v G981U1UESCHYC1/G981U1OYMCHYC1/G981U1UESCHYC1

Samsung's release notes and security patch level for this update: SM-G981U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode G981U1UESCHYC1.