indicator appears red in the last four green flashes) in the Step5.
(2) After the system start and self-checking has finished, if the LED flight indicator blinks Red, Yellow
and Green continually, that means the IMU data is abnormal. The PHANTOM FC40 will not work,
please connect to the NAZA-M V2 Assistant Software and follow the tips to do operation.
(3) If it blinks red and yellow lights alternately ( ), that means the compass error is too big, it
can be caused by the following three cases. Please connect to the NAZA-M V2 Assistant Software,
select the “Tools” tab and follow the tips of the “IMU Calibration” to do operation.
a) There are ferromagnetic substance around; first make sure that the compass has been
calibrated correctly, you can lift the aircraft up (about 1m from the ground), and stay away from
the surrounding possible ferromagnetic material object, if there is no red and yellow flashing
after lifting it up about 1m from the ground, then it will not affect the flight.
b) Compass module had been put near a magnet; in this situation please timely replace the
compass for a new one, otherwise it will lead to some abnormal action, or even loss of control.
c) Compass is not properly calibrated; in this situation please calibrate the compass correctly
again, please see the “Compass Calibration” section for details.
