Quote:
Originally Posted by crativeboy
I recently bought an iphone 3g from a friend who switched sim cards to use on his new palm treo instead. I asked him whether I should unlock the phone first before I use a att pre paid plan on it. He didn't know the answer. I have two questions:
1. Do I necessarily need to unlock the iphone first before I can put in a new att sim card for pre paid service?
2. Since my friend removed the sim card from the iphone and put it in his new phone could I just insert my new sim into the phone and start using it without accidently charging my friend's bill?
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No you don't need to unlock it. The Iphone is an att phone.
Yes you can insert your sim card as it is tied to your account and your account only.
You may need to make sure the phone (contact att) doesn't use the internet unless it is connected to Wi-Fi otherwise be prepared to pay for a 30/month iphone data plan.