I received a new DJI Spark for Christmas from my wife. I activated it, charged batteries and then stored it in a hard case. I finally got the chance to get it out and try it. The video feed is almost black and very pixelated. It cannot be flown using the camera only by line of sight. Any pics or videos and even live feed are like this, Using an Iphone 6plus, even on the sd card when downloaded directly. This was taken in a well lit office and what you are barely able to see are computer screens operating on bright settings. I have tried adjusting the EV settings and it does nothing. Any suggestions?