My HomePod mini keep flashing orange light , how can I reset it

If needs be see Reset HomePod - Apple Support.

tt2

It is precisely because of the power. From the article I directed you to:



Orange flashing light

HomePod mini is updating software while connected to a Mac, or is plugged into a power adapter that didn’t come with HomePod mini and isn’t rated 20W (9V ⎓ 2.22A).

Your Mac isn't designed to supply enough power. Use the brick that came with the HomePod.

tt2

See Identify status lights on HomePod - Apple Support. You need to use the supplied adaptor.

tt2

Again, from the document I referred you to:

White spinning light

HomePod mini is turning on or updating the software.

Have you been through Set up and use HomePod - Apple Support yet?

tt2