Patent attributes
A mobile communication device. The mobile communication device comprises a cellular radio transceiver, a radio modem communicatively comprising a radio modem processor, a radio modem non-transitory memory, and a security client application stored in the radio modem non-transitory memory. When executed by the radio modem processor, the security client application builds a device unlock request comprising an encrypted word, transmits the device unlock request via the cellular radio transceiver, receives a device unlock command via the cellular radio transceiver comprising a second encrypted word, decrypts the second encrypted word wherein the decryption of the second encrypted word comprises a digital signature, determines that the digital signature is valid, stores a device unlock state value in the radio modem non-volatile memory, and, configures a device unlocked policy into the radio modem, whereby the mobile communication device is configured to an international unlocked operation mode or a domestic unlocked operation mode.
