A105NKOU4BTJ1 – Galaxy A10 firmware

Build A105NKOU4BTJ1 is a feature update for the Galaxy A10 (SM-A105N) on Android 10. It first appeared on Samsung's servers on Nov 23, 2020 (method) and has reached 1 region so far. It raises the bootloader bit from 3 to 4: once installed, the device no longer accepts firmware with bit 3 or lower, so a downgrade to A105NKOU3BTG1 is blocked. Samsung still serves this file.

Model
SM-A105N
Android
Android 10
Type
Feature
Bootloader bit
4
First released
Nov 23, 2020
Regions
1

Rollout timeline by region

The date each region code (CSC) first received A105NKOU4BTJ1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaNov 23, 2020day 0A105NKOU4BTJ1/A105NKOO4BTJ1/A105NKOU4BTJ1

Download and release notes

samloader download -m SM-A105N -r KOO -v A105NKOU4BTJ1/A105NKOO4BTJ1/A105NKOU4BTJ1

Samsung's release notes and security patch level for this update: SM-A105N / KOO on doc.samsungmobile.com. What each part of the build number means: decode A105NKOU4BTJ1.