know anything about unlocking iphone 4 online by the operator? or maybe you have another method ? how to do it because I live in Poland and here vodafone only works in roaming. I think this is not a problem ?
Unfortunately there is no end user unlock solution for the 4.12.01 Baseband. Your only option is to see if Vodafone will unlock your iPhone from their carrier. I know some international wireless carriers will do this for a fee.