The Phantom 4 has been gathering dust for 2 years, but was just brought out to play again. I updated the software on drone as well as controller to the latest.
Everything works just fine, except return to home… It used to work perfectly.
Here is the link to a test-flight, illustrating the problem:
I click “RTH” at the 1m 36.9s mark.
Log then reads:
RTH: Heading alignment; Aircraft is returning to the Home Point. Minimum RTH Altitude is 30m. You can reset the RTH Altitude in Remote Controller Settings after cancelling RTH.
RTH: Ascending to RTH altitude
RTH altitude is set to 30m in the settings.
When I click return to home, the drone will turn the camera towards home and ascend to the max allowed altitude - and just stay there, hovering.
The distance to home is >200m or so, so it is not because it is too close. The home point is also clearly visible in the display, so it does know where home is. There is a clear line of sight to home as well, no obstacles. Also no obstacles close to the drone.
What could be the problem here, and how do I fix it?