[Gear VR] HMD sp does not render correctly

On the Gear VR, when I enter in the HMD sp command (either on start or while the app is running), instead of scaling up the rendering of the image per eye, instead it seems to do a zoom on the scene instead, as seen below.

This is what happens when hmd sp 200 is entered.

Any ideas on what the problem is or how to use an alternative method to get a similar result?

Tested on 10.4, the HMD SP command does not seem to have any effect at all for me on Gear VR.
Is there a different way to improve the quality on GearVR? My scene is very simple, being able to super sample it a little would help greatly.

Hello,i meet same problem,my project stop rendering about 10 seconds,can u help me?

my project on gear vr samsume s6 edge.