I purchased a very cheap $30 3DS off a guy on Ebay because the bottom touch screen was unresponsive and the top screen displayed nothing but a pitch black wallpaper. Being the guy who likes to mess with hardware, I purchased the item and opened it up. I took the whole bottom part of the 3DS out, cleaned out as much dust as I could from the buttons/motherboard, re-attached the parts and viola! The top screen displayed and everything seemed to work great! But the touch screen is still unresponsive because one of the ribbon cables are missing the clip to it to hold it down in place. Any suggestions?