Gear VR Jagged Edges

I am using Unity 5.3.5f1 Personal with a Samsung Edge 6+, and I am finding that even simple scenes with a plane, cube, and sphere exhibit a lot of jagged edging effects. Looking into this issue online, I found suggestions about turning Auto Graphics API off and deleting the OpenGLES3 option to force OpenGLES2 (did that, and also tried forcing OpenGLES3), changing the Texture Compression options (tried them all), using the default and OVR camera, and a few other settings, but nothing has changed the edging affects.

I did not have this problem with earlier versions of Unity and a Samsung Note 4. Is there a solution to this, or do I need to roll back to an earlier version of Unity?

Many thanks.

I see no one replied to this old question. Did you figure this out? I am having the same problem and have been experimenting with various settings.

Add QualitySettings.antiAliasing = 2; in your start function.
That can Solve the problem.