Hey there, having some trouble and its really frustrating me.
I have it narrowed down to this: if I have virtual reality supported enabled in my player settings, the apk will not open on my phone. It gets copied over correctly, I see the app icon, but tapping on it does literally nothing... no "insert into Gear VR" prompt, nothing. If I disable virtual reality supported, it opens fine (but obviously that's worthless to me).