When you say, “Switches on” do you mean:
A. The device powers up on its own, or
B. You turn the device on via its button on the rear
How is your Nav VI powered? For example, is it powered:
A. Direct from the battery, or
B. Somehow else
If B, how?
When the device is on, is it running from its own battery? Or is it being powered by the bike. If it is being powered by the bike, there’ll be the depiction of a lightning flash through the battery icon on the home screen
Is the bike new and was the installation done by BMW? If yes, return to BMW. If no, which chimp installed it?