How can I activate my iPhone 4 for the first time? I replied to a post in this thread, but I think this is a more appropriate place for my inquiry so I'm posting here for more visibility and hopefully some more help. Here's my problem. I need to activate my iPhone 4 for the first time, but I can't. I'm currently living in South Korea and I bought an iPhone 4 on ebay. The seller says they bought it at AT&T and "activated" it there. However, I think the seller might be ignorant in that maybe all they did was activate the SIM card and not the phone itself. They removed the SIM card and then shipped it to me. When I turn it on, it says "No SIM card installed" with the connect to iTunes picture in the back, and I can't do anything. I can do absolutely nothing...it's not even an iPod...it's just a piece of metal and glass. So I'm pretty frustrated whew and I've been scouring these forums for answers. I tried cutting down a Korean uSIM to micro SIM size and the iPhone accepts the card just fine, but iTunes says it's not a supported SIM card. I also tried cutting down an old AT&T card from the cell I used last year in the USA, and the iPhone doesn't even recognize the it - it says "No SIM card installed" just there wasn't a SIM in the phone. So Korean SIM = card recognized by phone, but not recognized by iTunes. Old AT&T SIM = card not even recognized by phone. How can I activate my phone for the first time? Do I need the original card that the seller used when they activated the SIM? Can I use a new unactivated pay as you go AT&T SIM? Any help is greatly appreciated. This is my first Apple product, so I really want it to be a good experience but it's been pretty frustrating so far. Thanks!