My nephew's XL unit which was bought brand new and he is the original owner. But while unclipping the ribbon for the top LCD that is under the motherboard when you flip it, the cable was partially torn near the bend where it gets wider. I would say it spreaded across 6 gold contacts. So I didn't proceed to change the camera as I wondered how the top LCD still worked in that condition. And surprisingly when put back together, the top LCD worked as normal. 3D worked and all. Does anyone know if not all the contacts are being used when clipped in? I don't know what to call the them but it is the gold contacts in the ribbons. And the tear was across 6 of them.