I have an issue where my device keeps rebooting every 5 mins as if it has lost the route. This seems to coincide with the last map update, I have completed all the updates and still not working properly. It will shut down (and say shutting down) or screen will go blank, soft reset does not get rid of the issue. Due to COVID I am not using it as much but it is now unusable in its current condition. Any ideas please?