Garmin nuvi 680 Owner's Manual - Page 53
Troubleshooting, Problem/Question, Solution/Answer - touch screen problems
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Troubleshooting Appendix Problem/Question Solution/Answer My nüvi never gets satellite signals. Take your nüvi outside, away from tall buildings and trees. Remain stationary for several minutes. Verify that the Bluetooth field is set to Enabled. My phone will not connect Make sure your phone is turned on and is less than 10 meters to the nüvi. (about 30 feet) away from your nüvi. See www.garmin.com/bluetooth for more help. How do I know my nüvi is in USB Mass Storage Mode? When your nüvi is in USB Mass Storage Mode, a picture of a nüvi connected to a computer is shown. Also, you should see two new removable disk drives listed in My Computer. 1. Unplug the USB cable from your computer. My computer never senses that the nüvi is connected. 2. Turn the nüvi off. 3. Plug the USB cable into your computer and your nüvi. The nüvi automatically turns on and goes into USB Mass Storage Mode. I cannot see any new removable drives in my list of drives. If you have several network drives mapped on your computer, Windows may have trouble assigning drive letters to your nüvi drives. See your operating's system's help file to learn how to map/assign drive letters. The suction cup will not stay on my windshield. Clean the suction cup and windshield with rubbing alcohol. Dry with a clean, dry cloth. Mount the suction cup as described on page 2. The touch screen is not responding to my taps properly. 1. Turn the unit off. 2. Press and hold the Power button for about one minute until the Calibration screen appears. 3. Follow the on-screen instructions. nüvi 680 Owner's Manual 45