I was doing some testing before the AVC next weekend and everything was running pretty well. While connected, all of a sudden I couldn't get GPS lock anymore and when I looked, none of the APM lights were on (while connected to USB). I've tried disconnecting and reconnecting, I've tried using the battery pack, but nothing seems to get it to light back up.
If I go through the Mission Planner wizard again, it seems to be able to update/verify firmware, but it cannot connect after that via Mavlink with a no heartbeat found error. Any idea what might be going on?