For Edge or Forerunner units, connect the device to your computer using the supplied USB cable.Press and hold the "Mode" and "Lap/Rest" buttons for 10 seconds. Turn the unit back on after the "Charging in Process" message is displayed on the screen.Slide the Power switch to the left once more, while simultaneously pressing and holding your finger on the bottom-right corner of the screen.Tap "Yes" in response to the "Do You Really Want to Start your Garmin in Maintenance Mode? Depending on the nuvi model, you may alternately see "Do You Really Want to Erase All User Data? Wait roughly 30 to 45 seconds for the reset to complete.
If your Garmin nuvi fails to respond to screen interaction, a soft reset will often solve the issue.
A hard or master reset typically restores Garmin GPS units to their default states, which eliminates any stored information.
Should a nuvi or Edge device fail to acquire satellites or respond in other ways, a hard reset might prove necessary.
Press and hold the Power button or switch until a single white dot appears on the screen.
Tap and hold the dot until you see the "Calibration Complete" message. David Lipscomb is a professional writer and public relations practitioner.