Electronic device and control method therefor

An electronic apparatus comprising:

• a display;
• communication circuitry;
• a power supply;
• a user input receiving circuit;
• a first processor configured to have a first mode in which the first processor receives first power from the power supply and connects with a server through the communication circuitry to transmit and receive information, and a second mode in which the first processor receives no power or second power lower than the first power from the power supply;
• and
• a second processor configured to output a mode switching signal to change an operation mode of the first processor to the first mode by controlling the power supply while the first processor operates in the second mode,
• wherein the communication circuitry is configured to identify whether to transmit a control signal to the second processor based on an identification information included in a communication signal, the communication signal being received while the first processor operates in the second mode,
• wherein the second processor is configured to, in response to receiving the control signal from the communication circuitry, control the power supply to supply the first power to the first processor such that the operation mode of the first processor is changed to the first mode,
• wherein the first processor is configured to, in response to the operation mode of the first processor being changed to the first mode, analyze the communication signal, and identify an operation to be performed based on the analyzing,
• wherein the second processor is configured to output the mode switching signal to change the operation mode of the first processor to the first mode in response to a user input received through the user input receiving circuit while the first processor is in the second mode.