Originally Posted by
Chief57
Thanks Jersey Joe. I'm a little befuddled by the lack of responses to my post. Today, at the suggestion of the local Ford dealer, I took off both battery terminals and let them sit for about an hour. Then, I touched the cables together to more completely drain any residual electricity from the system. Then, to be even more complete, I turned the ignition key to "on" and pushed buttons on the stereo. All this resulted in nothing....the unit continues to an error message frozen on the screen, and all buttons -- including the on/off button -- are disabled. The message is that I need to load a "valid" navigation disc. (My disc is valid, but it is scratched.) If anyone in the Dover DE area would allow me to use your valid disc (for a 2007 King Ranch) for just a couple of minutes, I'd like to see if that does the trick. Otherwise, I'm clean out of ideas.