I have F 900bt and its was great until today. The Navi start not getting right direction and keep turning around. I turn my key off and turn it back. The Navi start rebooting it self every 15 min. I didnt upgrade my Navi yet so the current firmware is 2.0. Dose anyone know y is this happened?? Can anyone help me??

Thanks

Hmmm, I could be wrong, but it sounds like a faulty GPS unit, or the GPS unit is not plugged in properly in the back of the unit. The first thing that I would do is slip the unit out and make sure that the green 'GPS' cable in the back is properly inserted. If it is and it keeps doing that, you can always try to replace the GPS unit. You should be able to get them cheap on ebay.