摘要 |
A subscriber identity module (SIM) card to be mounted to a terminal device that includes a SIM interface unit, the SIM card including: a first terminal to output a control signal indicating that the SIM card is mounted to the terminal device when the SIM card is mounted to the terminal device; and a second terminal to receive the control signal from the first terminal, and to transmit, to the SIM interface unit, the control signal when the SIM card is mounted to the terminal device.
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