receives the request the current hardware capability for the sim card needs to be responded in step s 2015 after step s 2015 is executed the procedure goes to step s 202 in fig2 step s 203 in fig2 describes how the responding unit cannot respond immediately to the network terminal with information about current hardware capability for the sim card because the network connection is disconnected the shared tx module is being used by another sim card or another reason thus in step s 2012 when the controller determines that the network connection between the sim card and the network terminal has been re established or that the sim card has the right to access the shared tx module the responding unit transmits the recorded hardware capability to the network terminal in another embodiment the controller may check whether the current hardware capability matches the recorded hardware capability and updates the information on hardware capability whenever the hardware capability changes the situation in step s 2013 occurs when a protocol stack or modem corresponding to another sim card a second sim card changes its services and causes the shared hardware resources to change since the hardware resources being used by the second sim card have changed the hardware resources available to the sim card the first sim card also change thus the hardware capability for the first sim card needs to be updated the situation pertaining to step s 2014 occurs when the hardware configuration of the portable device changes since the user may disable the bluetooth module for example the sim card needs to update its hardware capability information to avoid errors between the portable device and the network terminal in another example the sim card may support two network.