(i’m looking for a method where I can do it by myself, instead of paying another extra 0 to be done by the store)And will it avoid warranty if you unlock your iphone by yourself?ThanxChosen Answer:The AT&T stores or Apple store do not unlock iPhones. That is up to you to do. It is free and it does void your warranty.Try the links below, they will guide you thru to the correct programs needed for your particular firmware/bootloader combination if it is possible:http://www.iclarified.com/entry/index.php?enid=8603http://www.jailbreakmatrix.com/I am in no way affiliated with these sites and receive nothing in return if you go to them
How to unlock iphone 4 for overseas use?
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How to unlock iphone 4 for overseas use?