You mean the modded dji go4 app I guess. If so, yes I use that to set FCC. And at home, inside the house it works to set FCC, but out in the free it sometimes is impossible to do so. Only with alu-foil around the spark it works every time.
My experience is not that Autopilot always switches back to CE. As I wrote "If it stays green, then still in FCC. But if it changes to red for 8-10 seconds before green again, then it has reverted to CE." So there is an unsecurity here.
My experience is not that Autopilot always switches back to CE. As I wrote "If it stays green, then still in FCC. But if it changes to red for 8-10 seconds before green again, then it has reverted to CE." So there is an unsecurity here.