US Patent No. 9,198,045

MOBILE COMMUNICATION DEVICE REMOTE UNLOCK SYSTEM AND METHOD


Patent No. 9,198,045
Issue Date November 24, 2015
Title Mobile Communication Device Remote Unlock System And Method
Inventorship Jagannath Ghoshal, Overland Park, KS (US)
Bret D. Sumner, Lawrence, KS (US)
Simon Youngs, Overland Park, KS (US)
Assignee Sprint Communications Company L.P., Overland Park, KS (US)

Claim of US Patent No. 9,198,045

1. A mobile communication device, comprising;
a processor;
a memory; and
an application stored in the memory that, upon execution by the processor, configures the processor to:
write a list of non-approved mobile communication service providers to the memory,
unlock the mobile communication device during a first execution of the application, wherein an unlocked mobile communication
device is configured to connect to a radio access network of any mobile communication service provider and a locked mobile
communication device is configured to restrict the mobile communication device to connecting to the radio access network of
a primary mobile communication service provider, wherein when the mobile communication device is in a lock state the mobile
communication device is not able to communicate with different radio access networks, and wherein a mobile communication device
that is in an unlock state is able to communicate with other radio access networks,

determine that the mobile communication device is attempting to activate on a radio access network of a non-approved mobile
communication service provider that is identified in the list of non-approved mobile communication service providers, and

responsive to the mobile communication device attempts to connect to the radio access network of the non-approved mobile communication
service provider, lock the mobile communication device.