Well, not exactly a virgin--I got my drone 5 years ago, and after a short love affair with it, circumstaances changed, and it got packed up for 4 years. Now it's out again, and I can't get the controller to link with the drone or the app. Have charged up, but the status light stays white, and the battery level wont charge up beyond the thrid light, which flashes. To turn it on, I need press only once briefly--the longer second press makes no differnece. Any advice?