I have a jailbroken, locked iPhone 3G with IOS 4.2.1, BB 05.15.04 and 5.09 bootloader. I need unlock it but don't want to do it by upgrading BB to 06.15.00 because there will be GPS and battery issues. Do we have any unlock sim card to order to unlock my 3G iPhone(IOS 4.2.1, BB 05.15.04), something like Gevey Supreme Plus Red Ultra Sim Card for iPhone 4 unlock? Where is it able to be ordered? Or we have other way to unlock my iPhone 3G. Thanks a lot!