G981NKSS5IXH1 – Galaxy S20 5G firmware

Build G981NKSS5IXH1 is a security update for the Galaxy S20 5G (SM-G981N) on Android 13 (One UI 5). It first appeared on Samsung's servers on Aug 29, 2024 (method) and has reached 4 regions so far. It raises the bootloader bit from 4 to 5: once installed, the device no longer accepts firmware with bit 4 or lower, so a downgrade to G981NKSS4IXE4 is blocked. Samsung still serves this file.

Model
SM-G981N
Android
Android 13
Type
Security
Bootloader bit
5
First released
Aug 29, 2024
Regions
4

Rollout timeline by region

The date each region code (CSC) first received G981NKSS5IXH1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaAug 29, 2024day 0G981NKSS5IXH1/G981NOKR5IXH1/G981NKSS5IXH1
KTCSouth Korea (KT)Aug 29, 2024day 0G981NKSS5IXH1/G981NOKR5IXH1/G981NKSS5IXH1
LUCSouth Korea (LG U+)Aug 29, 2024day 0G981NKSS5IXH1/G981NOKR5IXH1/G981NKSS5IXH1
SKCSouth Korea (SKT)Aug 29, 2024day 0G981NKSS5IXH1/G981NOKR5IXH1/G981NKSS5IXH1

Download and release notes

samloader download -m SM-G981N -r KOO -v G981NKSS5IXH1/G981NOKR5IXH1/G981NKSS5IXH1

Samsung's release notes and security patch level for this update: SM-G981N / KOO on doc.samsungmobile.com. What each part of the build number means: decode G981NKSS5IXH1.