Question about Garmin Nuvi 660 GPS Receiver

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Same problem with my 660.  Worked flawlessly for 10 months and now can't find a satellite.  Tried the steps in other posts to no avail.

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Update 4,10 now.

Posted on Jan 21, 2008

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1 Answer

Garmin Nuvi 660 cannot acquire satellites


Hi I had this problem and its an antenna fault, give garmin a call and see if yours is still under warranty, if it is they will tell you to take it back to the retailor who will call garmin for a RA Number and they will replace it there and then. If your warranty has run out then call garmin to ask about repairs
Best Of Luck

Jul 19, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

Satellites not found garmin 755


is it getting to the satellites?
if not improve the battery level by charging properly.

Jul 06, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

Bluetooth will not enable


This is solved in a related post by silentspoon
http://www.fixya.com/support/t236067-bluetooth_enable

I just tried it for the same problem, worked great

Apr 23, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

System software missing


Sometimes when a GPS unit is turned on for the first time or is moved to a new location, it needs to rebuild the orbiting Satellite Database and relationship to those satellites at a specific location. Set the unit on and allow it to sit under the unobstructed sky for at least 10 minutes, could take longer if this is the problem. See if the error message clears, and normal function returns.

Feb 12, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

After 2 - 10 Minutes Satellite connection is lost


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 above problem.

Dec 19, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Gps garmin nuvi 660


Please read the solution that resolved this problem for someone else. Most likely, you have already tried this. However, the antenna of your Nuvi 660 is the same as the 3xx Nuvi series. I know this because I have worked on them.

http://www.fixya.com/support/t1115882-garmin_nuvi_360


If the above procedure does not work for you, the entire antenna assembly will need to be replaced.
The other option is to purchase an external antenna for your Nuvi and plug it into the external antenna port (gold connector) on the Nuvi antenna assembly.

Best wishes,
- Jim

Oct 26, 2008 | Garmin Nuvi 660 GPS Receiver

2 Answers

Garmin Nuvi 660 GPS Can't find 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.

Jul 05, 2008 | Garmin Nuvi 660 GPS Receiver

6 Answers

Unable to acquire satellites


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External antenna - Garmin 25MCX low profile remote GPS antenna

I have been experiencing the same problem many have been having with the Nuvi 6xx and 3xx series giving an error message “Lost satellite reception”.

My problem started mid April 2008 and got progressively worse. I would use my GPS on weekends and it would work perfectly for the first 10 – 30 minutes and then would loose satellite reception, rendering it useless.

I bought my Nuvi 660 when it first came out in October 2006 for just under $700 and is now out of the 1 year warrantee.
I called Garmin Technical Support and we checked my Software version (4.40) and more importantly my GPS SW version (3.00). According to the tech I had on the phone, the GPS SW version was more important then the Software version. It was in fact already updated to 3.00, I did master reset, after master reset, but regardless, nothing helped.

I contemplated what I should do.
Return mine and get a refurbished unit from Garmin for $225 with only a 90 day warrantee?
Buy a new Nuvi 660 for around $300
Buy a new Nuvi 2xx series with fewer features for $200 to $275.
Buy a Megellian GPS?

I read through this forum and came across one person that was told by Garmin “that they are aware of an issue with some Nuvis involving the failure of a diode in the unit that senses whether or not an external antenna is connected.” Apparently this diode failure is caused from the high heat these units experience from being left in a hot car for long periods of time. This would explain why mine would work in the beginning and then die.

So my thinking was, if the diode “thinks” there is an external antenna attached when it isn’t, what would happen if I “did” connect an external antenna?

Garmin recommends the Garmin GA 25MCX low profile remote GPS antenna for the Nuvi 660 and costs $31.49 (not sure about additional costs for tax and shipping)

So I purchased the NEW antenna from a seller on eBay for $25.90 total and IT WORK FLAWLESSLY.

Just to make sure it really was the new external antenna that was working and not the unit coming back to life, I started my 3 hour journey with the external antenna NOT connected. As usual it lost satellite reception in about 15 minutes. I plugged in the GA 25MCX and it immediately connected to the satellites and never lost them.

I repeated the same process coming home and once again, I connecting the external antenna after the unit reported loosing satellite reception, and it worked perfectly.

Conclusion: if your unit is experiencing loosing satellite reception, and is under warrantee, return it ASAP. If it’s out of warrantee, get an external antenna. There are other manufactures of external antennas and all should work as long as it has an MCX connector.

Side Note: This external antenna also worked perfectly on a friend’s Nuvi 350 with the same problem.

I wanted to share this with everyone because I’ve been racking my brain for months over this. I hope this helps.

May 04, 2008 | GPS

6 Answers

Trouble Acquiring Satellites


This can be easily fixed....
I had the same problem, I returned first piece and exchanged for the second. Had the same problem with second and took back to Circuit city. The GPS guys took out 3rd one for me and had same problem. Then the manager came who has been using these for couple of years and tried to set the home location 3 times and it worked 3rd time. He did the same for the second returned piece and it also worked. He says since these pieces are programmed for Kansas we need to give 3-4 tried before the piece first 'locates' satellite and then acquires satellite. After the the piece just turned out to be awesome.

Oct 02, 2007 | Garmin StreetPilot c340 GPS Receiver

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