A new update, XXAMH5, with Android 4.1.2 was released for Samsung Galaxy Core I8260 in France. Update XXAMH5 should be available in Kies if you live in France or through OTA.
If you want to manually update Samsung Galaxy Core I8260 to latest Android 4.1.2 XXAMH5 you can do so using Odin.
: Android 4.1.2
Our recommendation is to wait for the official XXAMH5 update. If you choose to update your Samsung Galaxy Core I8260 using Odin, you have to do it on your own risk.
Install Android 4.1.2 XXAMH5 on Samsung Galaxy Core I8260 using Odin
- First, download I8262XXAMH5_I8262OXXAMH2_XEF.zip
- Download Odin v3.07
- Continue the installation by following the steps here: How to manually install update XXAMH5 Android 4.1.2 on Samsung Galaxy Core I8260 using Odin.