Hi I am new to this forum. I had an issue with tomtom 8275 bridge. After I update to firmware 18. Somehow my tomtom missing the map so now I can't used it since it keep asking to reinstall the map. Now my question is how can I update the map and also somehow my tomtom could not be connected to pc so using tomtom software for pc is no go. I try both tomtom software and same result. When I connected to pc it just show me it's connect but no files in there just black screen.