tomtom go 710

[hmusa1]

hi everyone, i have just received a tomtom go 710 off a mate of mine and was wondering if i could update the maps to use the latest United_Kingdom_and_Republic_of_Ireland_900_4602 map. i have downloaded the map and created the dct file however the tomtom will not see the map, i have read that i have to update the navcore which on this tomtom is currently 6.5

does anyone have the latest navcore for this tomtom so i can use the latest maps, been looking around and cannot find.

thanks