hi Iunlock and jailbreak my iphone and now it won't read my sim card! I wanted to used it with t-mobile but didn't work so I put the old sim card and it won't work, the phone ask me to plug to itunes, what shoul i do?

I think the first thing you should do is to make sure where the problem is , the i-phone , the memory card, as you said , I suggest you to put the memory card into another i-phone or card reader. because there may be some thing wrong with your memory card, I meet the same problem too! good luck!
