Garmin NUVI 660 BlueTooth
I had the same problem, and this is how I fixed it. Now it's working fine.
Thank you for contacting Garmin International,
If
you are currently running the most current version of bluetooth
software, and you are still seeing issues where your compatible phone
is still not connecting properly, please try the below procedure, which
will reinstall the version of bluetooth you have downloaded in case
there was any corruption during the transfer or installation of the
bluetooth version.
1. Power the unit on
2. Touch View Map
3. Touch the ETA/Speed button in the bottom left hand corner.
4. press and hold your finger over the speedometer for 10-15 seconds until a new screen appears.
5. Touch next at the bottom of the screen until the top blue banner reads Bluetooth Status.
6. Touch UPDT P, then Touch yes.
7.
At this point the unit should go to a page that says Updating Bluetooth
Firmware, allow this to finish, once finished, press quit, then press
and hold the back button. At this point, go back through and try to
connect your Bluetooth device again.
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