Oculus[Samsung GearVR] App in Not Installed -> Not Compatible

Hi there,

There is some strange issue and i cant figure it out what is the problem. 

When i go 'build & run' my app on device, then app starts automatically and it works fine.
But when i attach device to Oculus and than try to start app from Library, it's in 'Not Installed' folder with screen on it 'Not Compatible'.

I tried to install .apk from MyFiles in Samsung, but still same problem.

Any suggestions what could go wrong?

Unity: 2019.1.1f1
Device: Samsung S7 edge

Thanks!