Hello i bhought a Nokia 2626 from pakistan and it worked perfectly there. The phone has a jazz sim into it. As soon as i turn it on it goes to the menu and there are no bars, the reason for this there is no Jazz Mobilink service in the US. I put in another sim into it from Net 10 and it did not work, i tried all of the sims and they all ask for the ristriction code. where do i find this code from????