How to navigate without buying maps?

I only use the F35 rarely. All I want to do is to turn it on, enter a post code and arrive. No maps to purchase. It tells me I have to buy maps. How do I overcome this position?

Navman F35; Purchased: 25/04/2010

Have lost all the information received with it!
Mrs Anita Priddy, September 2015


done
What its saying you need to update your existing maps my old garmin used to say the same I just ignored it going in to route address page.

bob uk, October 2015
You use a search engine like Google - you put the Post Code into the search bar and the result is a small map of where the place is.

You can expand the map.

Bon Voyage..., September 2015
link Click here to see other fixes for Navman.