1. Kalyanashis Chakraborty's Avatar
    My nokia lumia 930 is an International Unlocked version which I was using with AT&T and Airtel network. I had some problem with my OS. So had to re-instal the OS from service center. Now it is not detecting any sim from any carrier. Can anyone please advice, how to resolve the sim lock/career lock.

    Error message is : "The SIM card is missing or invalid. You can still make emergency calls if your mobile operator supports this".
    01-25-2015 10:01 AM

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