Question about Garmin 010-00358-00 GPS Receiver

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Nuvi 660 not locating satellites

On power up, my Garmin Nuvi 660 will not lock on to any satellites. Problem occured after software update. Is there any way to reset?

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Re: Nuvi 660 not locating satellites

Try this and see if it fixes your problem...first disable bluetooth then follow these steps.
1. Power off the unit.
2. HOLD down the power button and you will see "Pre Boot Mode" appear on the lower part of the display. KEEP HOLDING the power button down and the display will flicker, do this until the pre boot mode message disappears. This seems to take a long time (60 seconds at least).
3. Once the pre boot mode message disappears release the power button and your device will perform some activites to recover from the problem.

Posted on Jan 02, 2009

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Hi Martin,

It sounds like a corrupted firmware update. Please go to this site:

I believe the latest firmware version for a 660 is v4.7. You can try reflashing the firmware with v4.7 or trying an earlier version. Let me know if this resolves your issue.

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Please read this solution, which might help you. On the 660, you press and hold the upper-left hand corner of the screen while turning on.

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No. 98% of the time it took 45-56 seonds for your NUVI 660. Thats the compagny set up time acquisition and it did very well.

Be sur you had your flip antenna parallel to earth surface.
660 has THE BEST SIRF Chipset for acquiring satellite.

I had 2 NUVI 660 since 2 years. It work much better than those new 7xx series who it really took 2-3 minutes to acquire satellite.

Be sure you update your version to the last one.


Best regards

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