Sat nav not working

Dkels11 Registered Users Posts: 1
New Traveler
edited January 2019 in Map purchase & installation
i have a Renault grand scenic 2011. I’ve had the battery replaced today and now the sat nav is not working. I’ve taken the sd card out and put it in my computer and all info is still on it. When I reinsert it back into car, I simply get a message that says do not remove sd card (small blue line at top) and then it just displays the clock. Any help welcome please