I have a 2100 Nav. One cobra GPS can i download new maps?

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I didn't know there was a Cobra Radar Detector that has built in GPS guidance.
You'll need to update the maps, or purchase a new GPS. Yours may have issues locking onto the GPS signal, or calculating the route. If you don't have lifetime map updates, you may be able to purchase a new map download from manufacturer. However, it may make more sense to put the money toward a new model.

which device ?

Cobra NavOne 3000

Go to the Cobra website (see Resources) and click on "FAQ" at the top of the page.

Use the drop-down menus to select "Nav One 2750-2950-3000-3080" and "Software Updates." Click "Submit."

http://reviews.cnet.com/car-gps-navigation/cobra-navone-3000/1707-3430_7-31138256.html

Click "How do I get and load software updates?" Click the bold "HERE" link.

Scroll down and click "Nav One 3000/3080."

Click on the latest update link to download the update to the computer.

Connect the NavOne's power but do not turn it on. Connect a USB cable to the computer, and connect the other end to the GPS.

The GPS device's LEDs light up, indicating a connection.

Double-click on the update file you have downloaded.

Click "Next" until the update begins.

When you are notified of completion, close the update

hope this helps

It sound like it is a Cobra GPS. You can go to the link below it should explain what you need.

https://www.cobra.com/detail/7750-platinum-7-professional-driver-navigation.cfm

Here is a pdf that may also help:
https://www.cobra.com/downloads/Nav7750hints.pdf

Thanks for using FixYa

Here is a link to find your manual:

Cobra GPSM 2100 GPS manual

You can purchase map updates via Cobra's website
http://navone.cobra.com/software_updates.htm

In the box you should have a backup cd for this instance, just plug the sat nav into your computer with usb and run the cd

i need to download my nav-cam 7000

I have the new N30 software, it has updated maps and updated software. You can input street addresses and via directions. Contact me and I'll give you a link to download it. Joe