I just got a new K2 dual camera system straight out of the box. I did a bit of a test before fitting it to my bike. Recording seems to work OK, app connects and shows video, but the GPS light on the DVR keeps blinking at approx. 2 seconds interval. Does that mean there's no GPS fix? I kept the receiver outside, well in view of the sky, for over 2 hours, still blinking. Please advise.