FIRMWARE UPDATE METHOD, ELECTRONIC DEVICE PERFORMING SAME, AND CHARGING DEVICE

A firmware update method, an electronic device performing same, and a charging device are provided. An electronic device includes a battery, memory storing one or more computer programs, a communication module for establishing communication with a user terminal and a charging device, and one or more processors communicatively coupled to the battery, the memory, and the communication moule, wherein the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic device to transmit, to the charging device via the communication module, a set time to initiate a firmware upgrade and a flag that causes firmware of at least one of the electronic device or the charging device to be updated at the set time, receive, via the communication module, the flag from the charging device at the set time, and update firmware of at least one of the electronic device or the charging device by using firmware data that is received from the user terminal according to the flag and stored in the memory.