My Garmin 680 bluetooth stopped working w/ my LG... (by 6 users)

I followed tips from GPSPassion.forum who had similar problems w/ Garmin Nuvi 660/680.
Now my Nuvi connects to my LG vx8600 instantly without any further problems.
Here's the tip: Make sure your cell phone is turned on FIRST.
Turn Nuvi on AFTER your mobile phone is on, Nuvi will locate phone's
bluetooth and you will see the "telephone icon" displays on the Nuvi.

Note: If Nuvi is on (either navigating or stand by mode) and you turn on your cell phone,
the Nuvi's bluetooth will not work. In this case, you must turn off your Nuvi and then turn it back on.
p.s. I hope I am not confusing anyone.
XL4023

I did the following steps and my Nuvi 680 bluetooth is working good now.
Please try these:

Thank you for contacting Garmin International, I am sorry that you are having this issue. You may need to reset your
BlueTooth:
1) From the Nuvi main "Where To?" screen, tap "View map"
2) On the map screen, tap the "speed" indicator in the lower left corner of the screen.
3) On the next screen, there is a large round speedometer (mph) near the top center of the screen. Press and hold on the center of the speedometer until the screen changes to a diagnostic mode that says "Shutdowns" at the top.
4) Press "Next"at the bottom of the screen repetitively until you come to a screen that says "Bluetooth statues" at the top...
5) On the Bluetooth Statues screen, press "Updt PR" button in the lower right corner. The screen should show "Do you really want to update the Bluetooth firmware?"... Press "yes"... Let the unit sit for several minutes. It should show "Updating Bluetooth on the screen. When it is complete, it will return to the "Bluetooth Statues screen.... Press "Quit" in the lower left corner... Then return to the main "Where To?"
screen and try enabling and paring the Bluetooth again?.
Additionally, it is best to pair the devices from the cell phones menus and pairing procedures, instead of from the Garmin device......
Note: before re-pairing the Nuvi to your cell phone, make sure you remove the nuvi device fr your cell phone first, then add device. If your nuvi bluetooth still fails after you do this step, then your nuvi bluetooth file maybe corrupted. You will need to download this file and reinstall it to your Nuvi. Plz let me know, I'll show you how to zip the bluetooth file.
XL4023