Question about Garmin GPSMAP 498
Power off the Garmin unit. Press on continuously the upper top left corner of screen and then power on the unit by pressing once on the Power button. You should be prompted to clear all user data, or asked if do you really want to start up in maintenance mode. Press "Yes" to reset (warning: all data will be erased and lost, so backup before proceeding) or enter maintenance mode. I hope this helps. Good luck
Posted on Mar 14, 2011
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Posted on Jan 02, 2017
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