iphone4s can't use China Mobile's sim card after updating to 5.01
I've changed my sim card at China Mobile store in Guangzhou and it turns out that I can't even make 1 phone-call!! The staff told me that because there's problems or bugs with the 5.01 upgrade. Now I was forced to use China Telecom and everything's smooth like heaven. Hope apple will have an update for the China Mobile's user^^
iPhone 4S, iOS 5.0.1