I’ve been searching all around the internet for a solution. I’ve had my tilt for a little over a year now. Its been working fine until yesterday I randomly got a message on my phone saying "sim card is missing. You can make emergency phone calls if your service provides it" While I looked around online I’ve found it might be the sim card. I went to a AT&T store and got a new sim card, put it in and it still says the same message. I’ve even seen some posts say grab a eraser and erase the brass piece on the back of the sim card(weird…I know)  tried that and that didn’t work. Tried placing a piece of paper between the metal bracket and that didn’t work. I’ve also looked through these forums for an answer and still haven’t found one. So i’m wondering, has anybody else had this problem with their tilt? and if so how did you fix it?