how to use new sim card on a unlocked iphone 4
Insert SIM card. Turn phone on. Activate phone.
Are you having a problem of some kind?
Have you restored the phone since you have had it unlocked?
Your tag says iPhone 4. If it's a Verizon 4.. then it doesn't have a sim slot and will only work on Verizon.
Not to mention the fact that a CDMA iPhone 4 can't be unlocked in the first place...
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