An electronic device comprising: - a display; - a communication processor including: - a first communication circuitry configured to support a first cellular communication network, - a second communication circuitry configured to support a second cellular communication network; - a temperature sensor configured to sense a temperature of at least part of the electronic device; - an application processor configured to: - obtain information related to the temperature sensed by the temperature sensor and information related to data throughput by the electronic device; - determine (1211, 1221, 1311), whether to request the communication processor to change from a first mode to a second mode based on at least one of: - a first condition being satisfied where a temperature value as indicated by the information related to the sensed temperature, is greater than a first reference temperature; and - a second condition being satisfied where data throughput, as indicated by the information related to data throughput, is less than a first threshold value while the display is an inactive-state; wherein the communication processor is configured to: - receive a signal indicating to change from the first mode to the second mode from the application processor, wherein, while the communication processor is in the first mode, both the first communication circuitry and the second communication circuitry are in an active state, - in response to receiving a signal to change from the first mode to the second mode, perform (930, 1213, 1224) at least one operation for releasing the connection of the connected second cellular network; - in the second mode, maintain the release of the connection with the second cellular network by not transmitting (225, 1313) a measurement report to the first cellular communication network, related to the second cellular communication network; - change, after the release of the connection with the second cellular network, from the second mode to the first mode, when the application processor determines that the second condition is not satisfied. - a display; - a communication processor including: - a first communication circuitry configured to support a first cellular communication network, - a second communication circuitry configured to support a second cellular communication network; - a first communication circuitry configured to support a first cellular communication network, - a second communication circuitry configured to support a second cellular communication network; - a temperature sensor configured to sense a temperature of at least part of the electronic device; - an application processor configured to: - obtain information related to the temperature sensed by the temperature sensor and information related to data throughput by the electronic device; - determine (1211, 1221, 1311), whether to request the communication processor to change from a first mode to a second mode based on at least one of: - a first condition being satisfied where a temperature value as indicated by the information related to the sensed temperature, is greater than a first reference temperature; and - a second condition being satisfied where data throughput, as indicated by the information related to data throughput, is less than a first threshold value while the display is an inactive-state; - obtain information related to the temperature sensed by the temperature sensor and information related to data throughput by the electronic device; - determine (1211, 1221, 1311), whether to request the communication processor to change from a first mode to a second mode based on at least one of: - a first condition being satisfied where a temperature value as indicated by the information related to the sensed temperature, is greater than a first reference temperature; and - a second condition being satisfied where data throughput, as indicated by the information related to data throughput, is less than a first threshold value while the display is an inactive-state; - a first condition being satisfied where a temperature value as indicated by the information related to the sensed temperature, is greater than a first reference temperature; and - a second condition being satisfied where data throughput, as indicated by the information related to data throughput, is less than a first threshold value while the display is an inactive-state; - receive a signal indicating to change from the first mode to the second mode from the application processor, wherein, while the communication processor is in the first mode, both the first communication circuitry and the second communication circuitry are in an active state, - in response to receiving a signal to change from the first mode to the second mode, perform (930, 1213, 1224) at least one operation for releasing the connection of the connected second cellular network; - in the second mode, maintain the release of the connection with the second cellular network by not transmitting (225, 1313) a measurement report to the first cellular communication network, related to the second cellular communication network; - change, after the release of the connection with the second cellular network, from the second mode to the first mode, when the application processor determines that the second condition is not satisfied.