Drone refreshes the return point is set manually , or the operator moves that automatically refreshes the return point?

Taking DJI drone as an example, the most crucial thing for the refreshing of the navigation point is that the satellite signal should be strong enough. Generally, after searching for more than 8 satellite signals, the return point will be automatically refreshed. If the number of satellites is less than 8 or more, there will be no new refreshes manually. Only when the number of satellites reaches 8 or more can the return point be refreshed normally. After the operator moves, the navigation point will not be refreshed automatically. If you want to return to the point, set to the position after the operator moves, you can manually refresh the position after moving to the return point. Key point: The satellite signal is good and reaches more than 8 numbers before operation. Otherwise, you can not automatically refresh before takeoff, nor can you manually refresh.