I have a Phantom 2 that I updated to Version 3 of the Assistant. It wouldn't spool up so I calibrated my sticks and did the Advanced Calibration under TOOLS for good measure. I then did the compass calibration dance and while it starts out yellow and switches to green after the first rotation, when I make the second rotation instead of the green flash I get two yellow flashes in close succession and those yellow flashes (two close together) are what it displays when I boot up now (and I cannot spool up the motors). ... I've gone through the calibration routine numerous times (both in Assistant and trying to calibrate the compass in different locations to be sure I"m away from metal or interference) but no go. I can't figure this out. The LED code sheet does not include the double flash yellow and this is definitely different than the typical constant yellow flashing meaning no control signal (it will go into that LED flash when I turn off the transmitter). It obviously has something to do with the compass as it won't ever give me a green indicating GPS is working. Help would be appreciated.