Question about Garmin Nuvi 660 GPS Receiver

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My nuvi 660 does not start

It just show the first picture, and stays in picture mode.

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Have you tried resetting it?

  1. Disconnect from the external power source.
  2. Flip up the GPS antenna.
  3. Press the Reset button.
  4. Connect it to the power source. The unit should turn on.

Posted on Mar 05, 2008

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My Garmin nuvi 660 only stays on the "Loading Maps" when I turn it on. Tried resetting and holding down the On button until the Pre-boot mode setting goes off, still stays on "Loading...


This is caused by a corrupted file on the Nuvi. To fix this issue, a special version of firmware has to be flashed on the unit, telling it to not look for the corrupted files. The unit will boot normally, then using the PC, the corrupted files need to be replaced and then finally the special firmware needs to be replaced (reflashed) with a standard firmware.

I have done this numerouse times.

- Jim
SHARCNET-USA

Mar 20, 2011 | Garmin Nuvi 660 GPS Receiver

1 Answer

My garmin nuvi works as a stand alone, but plug her in to computer or car power and all you get is a screen showing garmin logo and a picture of it connected to a computer.


Hi

You will need to reset your Nuvi as it is locked into computer mode. To reset it - depending on your version see below.

On some Nuvis there is a recessed master reset button on the body of the unit which you need to access with a nib of a pen or bent paper clip.

For Nuvi 660/680 series
Power off Garmin unit. Press and hold 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.

For nuvi 200, 250, 360 750, 760 series
Turn off Garmin device. Press down on bottom right corner of the touchscreen, and while holding it 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 maintenance mode.

If the above fails it is likely that the problem is not with the Nuvi but the charging unit which is not signalling the unit properly and the Nuvi is recognising it as a USB cable instead of a charger.

Hope this helps. Please remember to rate my answer. Many Thanks.

Jul 19, 2009 | Garmin GPS Devices

1 Answer

Stuck with pre boot mode on screen


"Will not turn off, stuck on with display saying 'pre boot mode'. Does nothing but this - please help!"

This indicates that the on/off switch is shorted out. You can duplicate this problem by taking a working Nuvi and keep holding down the on/off button when turning it on. It will stay in this mode until you let off on the power on/off button.

- Jim

Jun 07, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Nuvi 660


my nuvi was working great til last week when for some reason it would not load maps, get stuck on the first screen and then just shut down.

Jan 22, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Garmin Nuvi 660 MP3 files


No program , your 660 read only MP3 , but did you try with WINDOWS it should work nicely.

Contatc GARMIN and mentionned if you can transfert with MAC.

Best regards

Jan 01, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Getting started with new Garmin nuvi660


Plug your 660 with usb into the usb port, computer must not set on sleeping mode (screensaver).

It will take 3-4 hours to be full charge

Dec 18, 2007 | Garmin Nuvi 660 GPS Receiver

3 Answers

Garmin nuvi 660 personal travel asistant


Are you running this unit while it is charging? Does the Nuvi 660 have a sufficient charge?

Try to do a hard reset on the unit.

Dec 13, 2007 | Garmin iQue 3600 GPS Receiver

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