Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
The part number you gave looks like you have a Magellan roadmate, is that correct?
Also, how old is your GPS unit roughly?
To get started, I need to know what type of computer you are using, a Windows XP, Vista, Windows 7, Windows 8, Windows 10 or a Mac.If its a Mac, please check the OSX version as follows, Click the apple sign at the top left of your screen, then click about this mac. And then where it says version, send that to me as a reply.
Allright.. Try to put in an address and see if it navigates.. If it is working, I will send you the refund link.
Otherwise, if it wont navigate or pull up the route. I will help you try and repair it / update..
Understood.. It looks like you fixed the issue without my help, therefore I have included the refund link below
if you encounter any issues in the future or need further assistance, you know where to find us.
Thanks for trying Justanswer.com!