Oculus Rift camera start time changes

Hello, I use Oculus Rift camera every time change it rotation angle ( it depends device angle at start). Have somebody problem like this ?

I solve this problem! Oculus have class OVRDevice.

It have public static bool ResetOrientation(int sensor)

I give sensor 0

Is that with dk1 or dk2? i have Dk2 and i have the same issue how ever i am not using Oculus plugin for Unity, how did you do it?