US Patent 9456349 Electronic device and network temporary unlocking method thereof

An electronic device is provided. The electronic device includes a communication interface configured to transmit a network temporary unlock request and receive a network temporary unlock approval. The electronic device also includes a processor configured to perform a network temporary unlock when the approval of the network temporary unlock is received, and release the network temporary unlock when a network temporary unlock time has expired by determining whether the network temporary unlock expiration time has come.