Hello, I am facing one challenge for my Iphone 3GS iOS 5.0.1, I have installed stock IOS 5.0.1, jailbroken with with redsn0w, installed ultrasn0w and SAM.. but when i press lockdown to stock and deactivate iphone it says ok.. when i connect it with itunes it is showing me invalid sim card ... I tried on SAM to set manually carier as per model number when i search carrier for my model "MC134X" it shows Australia and New Zealand i tried to set both and all networks but it shows same please help me to activate i want to activate push and imessage thanks..
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