Reason: motor unbalance

Solution:check motor balance from APP;Check whether propeller is loose or too tight

Calibrate remote controller

Calibrate accelerator

calibrate the voltage

Confirm whether pump channel exist in PC software; calibrate ESC.

1) Confirm the water level connector under bottom of the tank has been connected well,see picture

2) Observe whether real time water level display is correct,see dose on the screen of the GCS.

3) Calibrate the water level sensor: click the button READ first,keep tank empty and click button MIN; then keep tank full and click the button Max.

Note: calibrate compass when changing to another place .

joystick need to back to center after moving.

Moving the joystick,same direction with the flying means prolong,reverse means cut down. The bigger moving stroke,the faster speed for flying.