I have a new Phantom and I am unable to calibrate the compass. After assembling the Phantom, powering it up, and trying to go into calibration mode with my transmitter, I get continuous flashing yellow lights and the Phantom doesn't respond to the calibration process. I have connected it to the NAVA-M V2 program and it tells me that I need to calibrate my compass (duh!). Does anyone have any ideas what the problem is? I should also mention that this is my second Phantom, so I've set up a Phantom before and never encountered this. Thanks.