I bought this sight unseen knowing there was an issue with it but the price I paid made it well worth it as I was going to fix it. Turns out the old ESC warning error pops up when trying to take off. I have recalibrated the IMU, the compass, and reinstalled firmware and unfortunately that is where my abilities end. Aside from that its in great shape, comes with a nice molded box, all the screws and extra gimble mounts. The camera works perfectly and can be controlled from the remote. I just want to get back what I paid which is $250 and I will split shipping. I think this is a fair deal, if not please let me know as I have been out of the game for a bit.