N981U1UESEHYH2 – Galaxy Note20 5G firmware

Build N981U1UESEHYH2 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 Aug 27, 2025 (method) and has reached 16 regions so far. It raises the bootloader bit from 13 to 14: once installed, the device no longer accepts firmware with bit 13 or lower, so a downgrade to N981U1UESDHYG5 is blocked. Samsung still serves this file.

Model
SM-N981U1
Android
Android 13
Type
Security
Bootloader bit
14
First released
Aug 27, 2025
Regions
16

Rollout timeline by region

The date each region code (CSC) first received N981U1UESEHYH2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XASUSA (Sprint)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
XARUSA (Cellular South)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
DSHUSAAug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
SPRUSA (Sprint)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
TFNUSA (TracFone)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
TMBUSA (T-Mobile)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
TMKUSA (MetroPCS)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
USCUSA (US Cellular)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
VZWUSA (Verizon)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
XAAUSA (unlocked)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
AIOUSA (Cricket)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
ATTUSA (AT&T)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
BSTUSA (Boost)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
CCTUSA (Comcast)Aug 27, 2025day 0N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
LRAUSA (Bluegrass)Aug 31, 2025+4 daysN981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2
ACGUSA (C Spire)Aug 31, 2025+4 daysN981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2

Download and release notes

samloader download -m SM-N981U1 -r XAA -v N981U1UESEHYH2/N981U1OYMEHYH2/N981U1UESEHYH2

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 N981U1UESEHYH2.