"I had one do the same thing. It would take some versions of firmware and be able to connect, But then there was something wrong in other parts of the apm such as init gyro or rc inputs. I'm thinking its a bad spot in the memory. I sent it back to…"
"I got an Rma # and sent it in. They have had it for over a week. I have no Idea when I will see a new board It is hard to get a reply from emails. The board is obviously defective, When you can connect with some firmware versions but not others…"
I just received my new arducopter from Udrones. All went well with setup and test hover. I was thinking Yay this is going to be a great weekend. It took almost a month to get it and I was quite anxious. It hovered great in simple mode. took it back…