Press the button to fine tuning mode;
Control right joystick for fine tuning;
To exit, press it again.
(It would automatically exit if no
operation within 3 seconds)
If the aircraft keeps drifting leftwards
when hovering, push the joystick to
the right to adjust until it gets
balanced.
If the aircraft keeps drifting forwards
when hovering, push backward the
joystick to adjust until it gets
balanced.
