Hi there and welcome
To do this, you do a master reset which returns it to new condition like when you purchased it
To perform this procedure, turn the unit off.Use your thumbnail in the groove under the Garmin logo to remove thefaceplate.Press the reset button.Turn the unit back on, it should be reset.
If you have any problems, or would like any additional information or assistance, please do not hesitate to let me know.
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