I am using Garmin GPS unit for traveling all popular places of the world. GPS technology is very helpful to find out the exact, rough and unidentified locations and destinations easily. This GPS technology helps users to reach at desired destinations. From a few days, my Garmin GPS unit is not showing the right signals, so I want to update Garmin GPS unit in the proper ways. As per my technical skills, I am applying my skills to update Garmin GPS unit correctly. Therefore, anyone can recommend the smart ways to update Garmin GPS unit in the proper ways.