Ok, All of the updates and calibrations are done now need help with the iPhone/ipad and the app. I like the big screen on the iPad but the iPhone is easier. They both work great, I like the big screen the iPad. They both have great camera view. However, I don't want any phone calls when I am flying so I placed the phone in airplane mode. When I start the app up i can not see what the camera sees. It is a black screen with just DJI in the center. Same for the iPad. What do I need to do?