Question about Kenwood DNX7140 Car GPS Receiver

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Hi - Navigation screen stays completely blank - ie black. The rest of the functions are fine. When I then display the source selcet screen the navigation icon is red and if I press it I get a picture in the top left corner that shows two rectanglest with arrow from the smaller one to the larger one. Have upgraded the system software from 1.2 to 1.7m and tried to update the Garmin software, but can't because the navigation screent is blank. Hope som eone cam help.

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  • armstre Apr 25, 2010

    Thanks - is there any way I can completely re-set the navication software? What do you recommend - should I just take it to a dealer?

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First go to the following website:

https://buy.garmin.com/shop/store/downloadsUpdates.jsp?product=010-00752-00

You will download the latest Garmin software from this page. Save this to your computer. Then go to the following website:

http://www.kenwood.ca/Support/Car_Entertainment/Software/Garmin320/

This will give you the rundown on what to do to load the updated software into your Kenwood unit. As you can see from the screenshots you'll be able to do the update even if you cannot see the screen. As noted at the bottom right of the page you may end up having to take the steps 2 or 3 times before the update finally takes. If, after trying 2 or 3 times, you are still having issues you may have to take the unit back to where you purchased it to have them do some warranty work.

Posted on Apr 25, 2010

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Either the navigation software has become corrucpt or the GPS hardware has gone bad.

Posted on Apr 25, 2010

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