Does anyone know what the copper sticker is for? I accidentally ripped mine apart trying to get it off, it tore easier than paper, being that I didn't even notice I did it until I noticed it was ripped. I also thought to myself, why the heck did I remove this thing when I didn't need to. I've been trying to google it. it might be "iPhone 5S Rear Camera Cooling Copper Adhesive Sticker" but there is no reference as to how big that is. Anyway, I assembled it as normal and the phone works perfectly fine. So any help would be appreciated.