Before going on a trip to another city or country, you can download the maps you need using HTC Sync on your computer, then sync them to your phone.
You can also purchase licenses for other useful data such as driving and walking navigation, safety cameras alerts, and more.
On the Device panel, click Locations, and then click the On button.
Turning Locations sync on means you want this category included every time you sync your computer and phone.
Select and download maps and additional map features.
After you're done downloading items on your computer, you'll see these items in the Locations content list. You can then choose whether you want to sync all maps and licenses or just the items you select.