Hello, well, a friend gave me such navigation and when I turn on navigation it hangs on the message No maps found. MyDrive tomtom normally detects navigations but with maps I have "damaged" when I give repair this navigation Automatically jumps into the update mode and updates only up to 70% then hangs and on the navigation there is an inscription that the connection with the tomtom service has been lost. while on the computer 0% appears. The computer doesn't seem to detect it by any program even. I tried this 20 second restart but it didn't work. I completely don't know what to do, as soon as I plug it in it immediately updates itself.