Normally, countless people use GPS technology for tracking the rough routes, unknown destinations or locations exactly. Garmin is a popular brand, which is offering the exciting features and advanced functions to make users hassle-free, comfortable and relaxed. I’m also using Garmin GPS unit for finding out the exact locations or unknown locations. In the middle of the way, my Garmin GPS unit is not showing the signal to find out the exact locations. I am trying to find out the exact locations. I think that it can be an issue of update Garmin GPS unit. I don’t have full technical knowledge to update Garmin GPS unit. Can anyone share the easy tips to update Garmin GPS unit?