A system, a computer program product and a method associate service licenses with a wireless device. A device identifier (device ID) which identifies the wireless device and a Subscriber Identity Module identifier (SIM ID) identifying a SIM card currently inserted in the wireless device are received. If the SIM ID is not currently associated with the device ID, a listing of service licenses associated with the SIM ID is aggregated with a listing of service licenses associated with the device ID. The wireless device is authorized to use service licenses listed in the aggregate listing of service licenses. A virtual SIM identifier may be associated with the SIM identifier and at least one additional service license. The at least one additional service license associated with the virtual SIM identifier may be stored in a database as a subscriber service profile.

An exterior cover of an electronic device is provided. the exterior cover includes a cover portion including a front surface facing in a first direction, a rear surface facing in a second direction opposite to the first direction, and a recess formed on the rear surface; and a support member having a shape corresponding to the recess and including a magnetic material accommodated therein to be detachably provided on the rear surface of the cover portion. The cover portion includes at least one metallic member disposed inside thereof, and the at least one metallic member at least partially overlaps the recess.