Just got my P 1.1.1. First thing I done was upgraded the firmware. Upon plugging in P 1.1.1 I get a Error 27 GPS calibration error. When I look at the GPS value in the software they all read 0. I unplugged and then calibrated compass. When I power on it does the self test then lock on to satellites. I took it for a flight and it hovered just fine. Should I worry about this error and if so how do I fix it.