This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy J1 (SM-J120F)

Build Number : J120FZHS2ARA2

Android version : Lollipop(Android 5.1.1)

Release Date : 2018-03-08

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : J120FZHS2AQI1

Android version : Lollipop(Android 5.1.1)

Release Date : 2017-10-10

The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : J120FZHS2AQG2

Android version : Lollipop(Android 5.1.1)

Release Date : 2017-08-31

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : J120FZHU1AQB1

Android version : Lollipop(Android 5.1.1)

Release Date : 2017-03-29

- Added new feature
ㆍAdded Facebook application.
- Other bug fixes
ㆍFixes an issue that error of the Service Principal Name when using HKBN SIM card.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : J120FZHU1APC1

Android version : Lollipop(Android 5.1.1)

Release Date : 2016-03-18

- Increase ringtone volume
- Improve 3G/4G network data performance
- Update GMS applications.
- apply the Andriod regular security patch
- The 'Hangouts Messages' ringtone will be deleted from the Ringtone List.
If you are using this ringtone, it will be changed to default ringtone after upgrade.