My k800 was a great phone gave it all the abuse in the world, addmitidly it did fall to bits, infared fell out during a phone call once. Couldnt fault it though. Now however im using a k850i, every 2 weeks or so the whole messaging set up fails, so reset and lose all my stuff but it works after kinda a pain. Think its the C905? my sisters broke in a week, speaker blew.