Question about Garmin Nuvi 660 GPS Receiver

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Bluetooth connetion with Verizon Treo 700P

The unit disconnects my phone. Sometimes the phone will reboot and operate normally. Most of the time it will continue to disconnect or cause my phone to freeze up. Downloading latest Garmin Bluetooth and Verizon Bluetooth software does not help. Other people I know have this problem but nobody talks about a solution.

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Re: Bluetooth connetion with Verizon Treo 700P

Looks like your saying you've updated your n?vi 660 to software(firmware) version 2.0, if so you're moving in the right direction. Unfortunately the n?vi 660 does support the Treo 700P but only seems to support the 'Hands-free' BlueTooth profile and this is often problematical as is the 'headset' profile with some device combinations, that's precisely why many phones and devices now support both profiles. Check the pairing information to see if you're using 'headset' or 'Hands-free', whatever you're using delete the pairing on both devices and see if they will let you pair in the other profile. Your Treo 700P is made by PalmOne ( so you may want to check for software updates from them. This kind of problem is down to the lack of a solid standard for BlueTooth communications and you will often find that settings that work for one combination of devices are unstable with another. Post back if this doesn't help or if you need us to clarify anything.

Posted on Aug 23, 2007

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good luck


I was having the same problem with my Curve and Nuvi 680. What has fixed this for me is downgrading the Bluetooth firmware version on the Nuvi itself. I was running version 3.0 (you can check your version by going to Settings -> System -> About on the Nuvi) -- I had success after downgrading to version 2.4.

It's a bit of a convoluted process, but here is the procedure I followed:

1. Download the old Nuvi BT firmware from the Garmin Italy website:

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6. Disconnect your Nuvi from your computer, and let it

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10. Click "Updt PR" and then click "Yes"

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Seems to work perfectly now -- please let me know if you have any questions. Good luck!

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