Question about Garmin Nuvi 660 GPS Receiver
Power off your Garmin 660 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.
To back up your Garmin.
This should reset your Garmin then I would suggest updating your device at the Garmin site. I will attach a link.
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Posted on May 23, 2011
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Posted on Jan 02, 2017
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