I am using Garmin GPS unit from a long period. With the help of this Garmin GPS unit, I can drive my car safely. But from a few days, my GPS unit is not working properly or not showing the right signals. I am using the old version of Garmin GPS unit, so I want to update Garmin GPS unit. I am facing a lot of issues with my Garmin GPS unit, hence I don’t have the solid ideas to fix this error. I don’t have full knowledge to update Garmin GPS unit. So anyone can recommend the easy tips to update Garmin GPS unit.