If you buy an unlocked iPhone 5 and want to use it on your current carrier, you need to call them to get a new nano-SIM card.
I almost forgot to call my carrier to have them send me one of these new tiny nano-SIM cards. It would be a pity to get my unlocked iPhone 5 from Apple and not be able to use it. So this is a last minute reminder to all of you who are getting an unlocked iPhone 5 and want to use it with an existing plan. You need to get a new nano-SIM card from your carrier.
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The iPhone 5 will go on sale tomorrow at 8am. Apple already sold 2 million iPhone 5 phones just in the first 24 hours of pre-order. The shipping delay of the iPhone 5 is already up to one month.