1489 Views 1 Reply Latest reply: Oct 8, 2012 1:04 PM by Bonesaw1962
Currently Being ModeratedOct 8, 2012 1:04 PM (in response to Manoj Ladhad)
I think I'd start with this article and the ones linked at it's bottom. I'd also verify that the sim card number is shown correctly in settings, if it isn't reseat it. Beyond that a trip to the Genius bar might be advised.