i have a revo with the openpilot v9 platinum gps. all the settings are correct and it locks on to 7-8 satellites. but when i go into the mag calibration it fails every time no matter how high or were i place it on the quad.. i had a m8n that i soldered the mag wires on and set up but it decided to take a vow of silence and no longer talk to any satts, and it calibrated just fine. anyone else ever have issues with the v9? any help would be nice thanks....