Hi I have a Iphone 2g. Originally it was American but I had someone to unlock it to work in the u.k. I updated it to the newest firmware of 3.1. My phone then said i didnt have a valid sim for it. I then tried downgrading it again. It sort of worked. In the corner it displays the right carrier. However all I can access is to be able to make emergency calls. However I can recieve text messages through it
Any help would be much appreciated.