So it is stuck and non responsive having spontaneously tried to up date it’s firmware (I presume) there is just a picture of a cloud and arrow. Pushing and holding the button for 10 sec does nothing of course. There appears to be no genuine hard reset option. I can only assume I need to return it to the shop or winkle the batteries, but I don’t have a screwdriver that shape an I expect I would void warranty!! ciq.forums.garmin.com/.../1343955.jpg