I got a used 850 on ebay that has problems.
I formatted the unit and used map source to load a map on it
but it says no unlocked map, and shows no maps available
this is on the unit and also on a SD card
I used the webupdater to update the unit.
is there another way to restore it?
or am i missing something ?
I can take the sd card with the map on it will work on another 850 that i have