G960NKSU5FUG4 – Galaxy S9 firmware

Build G960NKSU5FUG4 is a feature update for the Galaxy S9 (SM-G960N) on Android 10. It first appeared on Samsung's servers on Aug 19, 2021 (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 G960NKSU4FUE1 is blocked. Samsung still serves this file.

Model
SM-G960N
Android
Android 10
Type
Feature
Bootloader bit
5
First released
Aug 19, 2021
Regions
4

Rollout timeline by region

The date each region code (CSC) first received G960NKSU5FUG4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaAug 19, 2021day 0G960NKSU5FUG4/G960NOKR5FUG4/G960NKOU5FUG4
KTCSouth Korea (KT)Aug 19, 2021day 0G960NKSU5FUG4/G960NOKR5FUG4/G960NKOU5FUG4
LUCSouth Korea (LG U+)Aug 19, 2021day 0G960NKSU5FUG4/G960NOKR5FUG4/G960NKOU5FUG4
SKCSouth Korea (SKT)Aug 19, 2021day 0G960NKSU5FUG4/G960NOKR5FUG4/G960NKOU5FUG4

Download and release notes

samloader download -m SM-G960N -r KOO -v G960NKSU5FUG4/G960NOKR5FUG4/G960NKOU5FUG4

Samsung's release notes and security patch level for this update: SM-G960N / KOO on doc.samsungmobile.com. What each part of the build number means: decode G960NKSU5FUG4.