An electronic device and method are disclosed. The electronic device includes: a communication circuit for transceiving data, a charging circuit for receiving power via an electrical connection, and controlling a communication channel operative through the electrical connection, a memory, and a processor. The processor implements the method, including: receiving, via the charging circuit, and through the electrical connection, connection information of a first external electronic device for communicatively connecting to the first external electronic device, from a second external electronic device into which the electronic device is inserted and receiving power via the charging circuit, transmitting, via the charging circuit, and through the electrical connection, connection information of the electronic device for communicatively connecting to the first external electronic device, to the second external electronic device, and storing the connection information of the first external electronic device in the memory.