I ordered an iPhone 6 and I will be asking AT&T to unlock my old phone since Gazelle with give me more money for it that way. So my old iPhone 5 will go to my son since it is 32GB and his current one is 16GB. Here is the way I think I need to accomplish this. 1. Switch sim cards of the two iPhone 5's so that my phone number is now associated with the 16GB one. 2. Turn on the 16BG phone and leave off the 32GB one. 3. Turn on the iPhone 6 and activate it. 4. Submit my unlock request online. So ATT may take 5 days to respond to the request and they might need the new phone activated for 14 days before they will unlock the old one. Do I twiddle my thumbs for 2 and a half weeks or is there a way to do this process faster so I can send my phone to Gazelle quicker? I don't want to send the request now and have it unlock my 32GB phone by accident. I don't think I could send my son's phone number to unlock the 16GB phone now since it wouldn't go through until after the 14 day grace period. Is it the sim that is in control of the unlocking or is it the actual phone hardware that is affected? I'm not sure if I am over thinking this since this is the first time I will be unlocking a phone.