So, had Garmin Edge 705.
This is now toast and, to tide me over, I got an Edge 605 (Not as good).
I also had the GB TOPO Maps. As the 705 is toast, I wanted to install these on the 605.
Need unlock code.
garmin reponse - The maps come with one licence for installation on one device. I'd have to buy the maps again (£150!!)
I have installed the Open Street Map with contours on the 605 but can't help but feel Garmin are taking the piss.
I was going to buy an edge 800, but think I'll look at other suppliers.