I have four HomePods, all named, very sadly, after Star Wars droids. One of these HomePods is called R2-D2. It is one of the original HomePods. This morning, when trying to use it, it would not work. It has completely died. I have tried turning it on and off again, but no lights are flickering on it and it cannot be found on the home app. I have looked at various troubleshooting articles to see if I can get it going but as yet no joy. I think it is dead. I would welcome any suggestions on being able to resurrect it.