N981U1UESDHYG1 – Galaxy Note20 5G firmware

Build N981U1UESDHYG1 is a security update for the Galaxy Note20 5G (SM-N981U1) on Android 13 (One UI 5). It first appeared on Samsung's servers on Jul 27, 2025 (method) and has reached 16 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to N981U1UESCHYD1 is blocked. Samsung still serves this file.

Model
SM-N981U1
Android
Android 13
Type
Security
Bootloader bit
13
First released
Jul 27, 2025
Regions
16

Rollout timeline by region

The date each region code (CSC) first received N981U1UESDHYG1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
TMKUSA (MetroPCS)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
BSTUSA (Boost)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
CCTUSA (Comcast)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
DSHUSAJul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
SPRUSA (Sprint)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
TFNUSA (TracFone)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
USCUSA (US Cellular)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
VZWUSA (Verizon)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
XAAUSA (unlocked)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
XARUSA (Cellular South)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
XASUSA (Sprint)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
AIOUSA (Cricket)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
ATTUSA (AT&T)Jul 27, 2025day 0N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
ACGUSA (C Spire)Jul 28, 2025+1 dayN981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1
LRAUSA (Bluegrass)Jul 28, 2025+1 dayN981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1

Download and release notes

samloader download -m SM-N981U1 -r XAA -v N981U1UESDHYG1/N981U1OYMDHYG1/N981U1UESDHYG1

Samsung's release notes and security patch level for this update: SM-N981U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode N981U1UESDHYG1.