Click Log in at the right top corner of the window.To log-in and update your device software, follow the steps below. If you have not updated your device for a long time you might have to install multiple updates because TomTom software updates are incremental and must be installed in sequence. The latest version of the TomTom software must be installed on your device before your map can be listed. Your navigation device does not have the latest software installed:.Tip : If you're not sure which email address to use, check where your purchase confirmation email was sent and use that email address. To download the map you must log in to TomTom HOME using the same email address. The purchased map is linked to the email adress you provided at the checkout. You logged-in to TomTom HOME using a different email address:.When your purchased map does not appear in the list of updates in TomTom HOME, it could be for one or both of the following reasons: