A920NKSU5CUI1 – Galaxy A9 firmware

Build A920NKSU5CUI1 is a feature update for the Galaxy A9 (SM-A920N) on Android 10. It first appeared on Samsung's servers on Oct 13, 2021 (method) and has reached 1 region 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 A920NKSU4CUD1 is blocked. Samsung still serves this file.

Model
SM-A920N
Android
Android 10
Type
Feature
Bootloader bit
5
First released
Oct 13, 2021
Regions
1

Rollout timeline by region

The date each region code (CSC) first received A920NKSU5CUI1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaOct 13, 2021day 0A920NKSU5CUI1/A920NKOO5CUI1/A920NKOU5CUI1

Download and release notes

samloader download -m SM-A920N -r KOO -v A920NKSU5CUI1/A920NKOO5CUI1/A920NKOU5CUI1

Samsung's release notes and security patch level for this update: SM-A920N / KOO on doc.samsungmobile.com. What each part of the build number means: decode A920NKSU5CUI1.