Server, update management method, non-transitory storage medium, software update device, and system including server and software update device

A software update device configured to control software update of an electronic control unit mounted on a vehicle, the software update device comprising one or more processors configured to:

• perform bidirectional communication with a server using a first communication method;
• receive information from the server using a second communication method different from the first communication method;
• and
• determine whether the one or more processors have received a notification from the server using the second communication method, wherein
• the one or more processors are configured, when determining that the one or more processors have received the notification from the server, to cause an output device to output information related to the notification that is received.

A system comprising:

• a server;
• and
• a software update device configured to control software update of an electronic control unit mounted on a vehicle, wherein
• the server includes one or more first processors configured to
• perform bidirectional communication with the software update device using a first communication method,
• transmit information to the software update device using a second communication method different from the first communication method,
• determine whether the one or more first processors have received a specific request from the software update device using the first communication method, and
• provide a notification to the software update device using the second communication method when determining that the one or more first processors have not received the specific request from the software update device, and
• the software update device includes one or more second processors configured to
• perform bidirectional communication with the server using the first communication method,
• receive information from the server using the second communication method,
• determine whether the one or more second processors have received the notification from the server using the second communication method, and
• when determining that the one or more second processors have received the notification from the server, cause an output device to output information related to the notification that is received.