| CPC H04W 8/183 (2013.01) [H04W 8/24 (2013.01); H04W 12/71 (2021.01); H04W 12/72 (2021.01)] | 16 Claims |

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1. An electronic device comprising:
a communication module;
a subscriber identification module; and
at least one processor,
wherein the at least one processor is configured to:
identify whether the subscriber identification module is first inserted,
identify identification information of the subscriber identification module stored in the subscriber identification module when the subscriber identification module is identified as being first inserted,
configure a network service provider based on the identified identification information,
generate a signature by using lock information of the subscriber identification module,
identify whether the signature is valid,
identify network lock information when the signature is identified as being valid, and
set up a network lock function of the communication module based on the identified network lock information.
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