NAVIO2 control by Joystick


I believe that trying to control with the joystick using the NAVIO2 and Raspberry pi3.
But can not.
I was in reference to the following site.

To set the joystick, it puts the power of the ESC while increasing the throttle.
However, it was not able to enter the calibration mode.
In addition, the motor does not work even then to move the throttle

Please someone advice