When you start TomTom App and a map update is available you are asked if you want to download the new map.
Tap Download to download the map.
Important: A map is a large file that can take a long time to download. To prevent high data charges we advise you to download a map using a WiFi connection.
Tap Skip version to continue using the old map. You can choose to download the next map release when it is available.
Tap Ask me later to be informed about the current map update when you next start TomTom App.
When the download is complete tap Start TomTom Navigation.