So... I picked up a Syma X11 Hornet. It looks a lot like a husban H107L (using the same frame, I presume). I tried to bind to it on SymaX and no go. I also tried Hubsan4 , just in case it was a more direct clone. Also failed on YD717/SymaX4 and Flysky. The TX had the battery case soldered to the board, so the attached pics aren't the greatest. Hopefully there's enough useful info.