Firmware 3.12 CRASHED my Phantom...

[Tahoe Ed]

I have flown but GPS wont lock it but has issues locking on to GPS always says calibrate compass now, this has never happen before.
When plugged in says.
Abnormal compass data. Please restart the Flight Controller or reconnect the compass due to the loss connection. if this error continues, please contact your dealer or DJI customer service.

Have you calibrated your compass? Simple procedure via Tx control. You should do this when you move to a new location. Also note that in the last few days we have had high solar flair activity and that will effect GPS. You may want to check before you go out and fly. There's an App for that.