Board Thread:Love Live! School Idol Festival Lounge/@comment-29375806-20160823220041/@comment-11148831-20160824134110

If Play Store told you that it wasn't compatible with your device yet you still tried to install through apk, then something is really bound to go wrong. It's not like JP server where it's only not available for your country.

I understand JP worked for that phone. But you have to consider the fact that they are still different servers not managed by the same people. EN server does have some tweaks that are not present in JP server. These are most probably the ones that make the game incompatible with your device.