Lowrance LMS 320 question?

I cant seem to get my lms 320 to pull up the nav. lakes? What am i doing wrong? Thanks for any help

If you have a map card in the unit, you may have to pull up the specific area you are currently in. I can’t remember right now where it is exactly, but you need to go into your menu and browse your files, and pull up the state or area you’re fishing, and then it will load those lakes in your immediate area. Don’t be afraid to go thru the menus a little bit, too, until you find it. It’s hard to screw any of it up.