Navigation plus for sale Sheffield

Hi new member. I’ve a navigation plus for sale it has blank screen but everything else works so would need to go to someone who can fix them. It worked until last week then just went black.
open to offers will go with the Bluetooth cd adapter I used with it. I’m in Sheffield.
it’s the one with 2 so slots. i have original book as well but not sure if it has a pin I’ve had battery off a few times and it never asked for one. You can see it working in my car before sale.