Problem : Launch App in 2D mode without the headset [Gear VR]

Hi everyone, I have a problem :

I want to create a 2D application with a menu where the player can choose between somes VR mini games and load them into VR mode. I don't know how to switch from 2D mode to VR mode.

I have tried this solution but : http://answers.unity3d.com/questions/1248857/possible-to-start-gearvr-app-as-a-normal-2d-applic.html

And the command "VRSettings.enabled = false;" doesn't work too. The app still need the headset to start.

In some topics I see "it's not possible to do that''.. Really ? I hope someone has a solution because I need to find a way to do that, I have to use this for my job.

So if someone can help me thanks ^^