Hi everybody, I've just bought an iPhone 3G 3.0 16gb jailbroken and unlocked with redsnow and ultrasnow. At first it worked with my Spanish Vodafone SIM card. I can use it with 3G network but if I turn off the 3G it gets no signal at all. Maybe it gets for a few seconds but it vanishes after. I would like to know if this is normal or if it should work without 3G because in many places there is no 3G network and I need to know if there's a problem here. I would appreciate any comment or suggestion. Thanks!