I've got an iPhone 3G (with 2.30.03 baseband) and would unlock and jailbreak it. So I bought a Gevey sim card. Could some kind soul give me some advice as to how to proceed? Should I first jailbreak the iphone, and then put in the gevey sim card? Or the other way round? And, which way should I place the gevey sim card? underneath or on top of the carrier's sim card? Thanks a lot in advance. Best regards, Gabriel.