J3109KEU1ARA2 – Galaxy J3 firmware

Build J3109KEU1ARA2 is a feature update for the Galaxy J3 (SM-J3109) on Android 5. It first appeared on Samsung's servers on Feb 8, 2018 (method) and has reached 1 region so far. It keeps bootloader bit 1, so downgrading to the previous build J3109KES1AQI1 is still possible. Samsung still serves this file.

Model
SM-J3109
Android
Android 5
Type
Feature
Bootloader bit
1
First released
Feb 8, 2018
Regions
1

Rollout timeline by region

The date each region code (CSC) first received J3109KEU1ARA2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CTCChina (Telecom)Feb 8, 2018day 0J3109KEU1ARA2/J3109CTC1ARA2/J3109KEU1ARA2

Download and release notes

samloader download -m SM-J3109 -r CTC -v J3109KEU1ARA2/J3109CTC1ARA2/J3109KEU1ARA2

Samsung's release notes and security patch level for this update: SM-J3109 / CTC on doc.samsungmobile.com. What each part of the build number means: decode J3109KEU1ARA2.