If there are any abnormalities in the use of the aircraft, please re-establish the aircraft.
Calibration: Turn on the aircraft switch, and the middle light flickers alternately from red to green. When the green light is always on, shake it three times or more in the air, the middle indicator light Alternate flashing from green light to red and green light will enter the correction mode and fly.
The machine is kept in a horizontal position, and the middle indicator will be changed after the calibration is completed. If the green light is always on, the normal flight can be resumed.