Disclosed is a network device, including a communication circuit and a processor. The processor is coupled to the communication circuit and configured to: in response to determining that a version of a first update file from an update server satisfies a preset condition, control the communication circuit to obtain the first update file from the update server; read identification information from at least one predetermined data location of the first update file; in response to determining that the identification information in the first update file matches the network device, update the network device based on the first update file.