Jailbreaking iPhone 3G question help ASAP
I was trying to do a jailbreak for my friend. and I used Pnage 2.2 and I followed the steps of iClarified.com on how to jailbreak your iPhone 3g... and yes I did successfully unlock it but now when he puts in his AT&T sim card it doesn't show a carrier... it just gives 4 flat lines like this ( _ _ _ _ ) and I go to setting,general, about... and i look at carried and it says "null (null)" ...
how do i fix this? i've been looking around the web and can't find anything.