Terminal and operation method

The invention discloses a terminal and an operation method. The terminal comprises an SIM card; an input unit configured to receive a touch operation from a user; a display unit configured to displaya user interface; and a processor coupled to the input unit and the display unit, wherein the processor is configured to receive a request by a user to operate a supplemental service; and in responseto receiving the request, determining that the data switch is in a closed state, and opening the data switch, wherein the supplementary service is a call restriction service or an incoming call forwarding service. According to the method, the request of the user for operating the supplementary service is received, and in response to the received request, the data switch is determined to be in theoff state and is turned on, so the user does not need to enter a setting page to manually turn on the data switch and then enter a corresponding interface to operate the supplementary service, the user operation is simplified,