I know this is a long shot because the TomTom 700 is no longer support and old, but here we go....\n\nMy TomTom 700 was working perfectly and I wanted to install some US maps on that I have previously purchased a few years ago. During the installation there was a power cut and it didn't complete. The TomTom was working fine, but the US maps didn't seem to install after that. So I followed [URL='https://uk.support.tomtom.com/app/answers/detail/a_id/12412/~/restoring-your-navigation-device']these instructions to reformat[/URL] my TomTom via my Mac. \n\nSince then my TomTom has displayed a flashing red X on start up. \n\nI've tried copying the backup files onto manually. Doing this allows it to be seen by TomTom Home, but it still displays the flashing X. \n\nAny ideas how I can fix it.\nSteps I have tried:\n-Reformatting on Windows as Fat 32\n-Reformatting on Windows as Fat \n\nReformatting it, downloading the following file and installing them:\n[URL]http://download.tomtom.com/sweet/navcore/navcore_7.903.9183.go700.cab[/URL]\n\nUsing ClearFlash:\n[URL]https://uk.support.tomtom.com/app/answers/detail/a_id/6178/kw/clearflash/sno/1[/URL]\n\nNot sure what more I can do. All my troubles start when I reformatted the unit, so perhaps it hasn't be formatted correctly? I run "Check for Errors" in Windows (via "This PC") and it says the drive is fine.