AT&T Pantech Matrix says invalid card. How do I get it to work again?
I was board on a long road trip so I tried to hook my iPod touch up to my Pantech Matrix via Bluetooth. It asked for my phones password but I didn't have one so I went in to set one up. I tried to exit but it asked for my SKU number. I didn't know what it was so I kept guessing and then it said invalid Sim card. What do I do?