You can download the update directly on your device through the Windows Phone Store or by using the link which follows:
The Nokia HERE Maps for Windows Phone update has the following new features and improvements:
- Pause scenes in LiveSight and browse without holding up your phone
- Pin LiveSight to Start screen to look around with a tap
- Tap public transit stations to quickly reveal list of available transit lines
- Access directions faster by simply tapping on a POI
The updated version of HERE Maps will come pre-installed on the Nokia Lumia 1020 but is not compatible with the entry level Nokia Lumia 520