I am having issues with my Phantom 2 Vision + as follows: When I turn on equipment and prepare for flight, system seems to go through normal startup procedure. However at end of startup procedure lights on drone show red and I get a "System Error" message on my screen. When I lift drone or move it around, I get temporary green lights and "Ready to Fly" message on screen, maybe 3-5 seconds....then it reverts back to error message. I can walk around carrying drone and it will cycle between "System Error" and "Ready to Fly" mode in 3-5 second cycles. When this problem started a month ago, I was able to lift up the drone until error message disappeared, start the motors, and fly away. Once I got up in the air, she functioned completely normally for a while. But lately I can't even get the motors started. As soon as I get a momentary "Ready to Fly" message, I try to start the motors, and the red lights start flashing on drone and app reads "System Error" again. Context: Drone is over a year old and has logged tons of great flights Has not crashed or taken fall Updated with latest firmware Compass is calibrated Visual inspection of wire connections in body shows no issues I have tried to fly in multiple locations with same problem Any thoughts on what my issue is here?