Abstract: A converged device including a first subsystem and a second subsystem, configured to operate in multiple operation modes with varying levels of security. One example provides a method for operating the device. The method includes determining, during a startup sequence of the first subsystem and with a first processor of the first subsystem, a last operation mode for the first subsystem. The method includes determining, responsive to detecting that a SIM is installed in the converged device, a network type for the SIM. The method includes controlling, with the first processor, a first communication interface based on the network type and the last operation mode. The method includes determining, during a startup sequence of the second subsystem and with a second processor of the second subsystem, the last operation mode for the first subsystem and controlling, with the second processor, a second communication interface based on the last operation mode.

Abstract: A converged device including a first subsystem and a second subsystem, configured to operate in multiple operation modes with varying levels of security. One example provides a method for operating the device. The method includes determining, during a startup sequence of the first subsystem and with a first processor of the first subsystem, a last operation mode for the first subsystem. The method includes determining, responsive to detecting that a SIM is installed in the converged device, a network type for the SIM. The method includes controlling, with the first processor, a first communication interface based on the network type and the last operation mode. The method includes determining, during a startup sequence of the second subsystem and with a second processor of the second subsystem, the last operation mode for the first subsystem and controlling, with the second processor, a second communication interface based on the last operation mode.

Abstract: Method and apparatus for associating a subscriber identity module to a group of mobile communications devices is provided. One embodiment provides a method including receiving the hashed value from the SIM card and decrypting, using the trusted electronic processor, the hashed value based on a second key stored on the mobile communications device to generate a response. The method also includes sending, using the trusted electronic processor, the response to the SIM card and receiving, at the trusted electronic processor, an acknowledgement from the SIM card indicating that the response matches an expected response.