khaled_hotncool
New member
...the message insert a sim? I upgraded my iPhone 3G from 3.0 to 3.1.3 . After it got upgraded it was showing the message insert a compatible sim. but i was still able to use my iphone 3g for listening to music and etc but could not call . so restored it back to 3.0 . after i restored it . it got locked . i tried many thing but nothing is happening . please helpppppppp!!!!!!!!!!!!!!!!!!