How to Install and Use Garmin Mobile XT 5.00.50 S60.9 - V 5.00.50 on Your Nokia Phone If you are looking for a reliable and easy-to-use navigation software for your Nokia phone, you might want to try Garmin Mobile XT 5.00.50 S60.9 - V 5.00.50. This is the latest version of Garmin Mobile XT that supports Symbian S60 3rd edition devices, such as Nokia 5800, N97, E71, N95, and more. Garmin Mobile X..