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It seems that it's a software problem ,. To software problem on your device , you need to reset it .
To reset your NUVI , please follow one of these procedurs :
1:Turn the Nuvi on.
2:Touch the tools icon on the main screen. The tools icon is represented
by a wrench surrounded by a blue circle.
3:Touch the "Settings" icon which appears as a wrench.
4:Push the "Restore" button at the bottom of the screen. A confirmation
message will appear asking to confirm restoring the Nuvi to factory
settings. Push yes to restore the factory settings
Try this for hard reset .
Turn off Garmin device. Press down on bottom right corner of the
touchscreen [ Don't let go
] , and then power on the GPS unit. You should be prompted whether do
you really want to erase 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
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To perform a Master Reset on the nuvi 200, 205 series device: Note: A masterreset will erase all waypoints or favorites
and will restore your unit to the default factory settings.
Start with the unit OFF
and unplugged from power
Touch and hold the lower
right corner of the screen with an index finger or the eraser end of a
Continue touching and holding
the lower right hand corner of the screen then power the unit ON
Release the power button when
the device powers ON
You will see a new
message: Do you really want to erase all user data?
Remove your finger from the
touchscreen when this message displays
The device will automatically reset. Follow the on screen prompts then place
your device in an area with a clear view of the sky until it acquires
turn it off and unplug it from power, then press and hold the lower right corner of the screen, then power it on. when it comes on release the power button and you will see a message similar to: do you really want to erase all your data? YES, release your finger when you see that message, then follow the on screen prompts.
No.......the C340 STREET PILOT has a hidden reset button. Put your fingernail in the slot just under the GARMIN name on the front face plate. Gently pull the face plate outward. Don't take it all the way off. The reset button is on the right side of the front screen just under this plate. Use a pointed object and hold the button IN for 3 seconds and unit will turn off. When you power it back up it will REBOOT.