I received this navi as a gift in Dec 2018. My friends stated they bought it from TOMTOM in November 2018. After several months of use, I got a msg saying the map needed updating. As I have free lifetime maps I proceeded to try. I downloaded the HOME software and it suggested several updates, which I installed. Software said install was successful. When I restarted the device, a TOMTOM START whose SN first 2 are GZ, it showed two maps, Europe and USA/Canada/Mexico. The device then said it could not use those maps on this device. I then tried backup/delete of Europe map. After that was done, the device would still not allow me to use the remaining map. I then lost the USA/Canada/Mexico map. Now the HOME software does not recognize that the Navi is even connected to the computer, a Mac. The computer sees the TOMTOM as a removable HD named TOMTOM. Tech support have told me, after 2 weeks of back and forth, that my drive is a legacy device and they cannot help me further. Their last suggestion was trying the FAQ. I did try simply placing the backup files inside the HD icon on the desktop but that accomplished nothing as I thought it would do just that. Anybody got any ideas?