Thread: Garmin City Navigator North America NT 2014.10

Originally Posted by idol007

ok do does anyone know what else i need to get my gm xt to use the newer maps (or if it is even possible)? if i replace with the newer map and unl, my gm xt only recognizes the base map. also i noticed that jetmouse tool keeps outputting diff codes if i just keep pressing the generate button and without changing the unit id... are all those codes valid?

NT maps are no problem and XT has no gma protection so you can unlock a locked image file with just a JM generated unlock code in a .unl file. But as Roger has pointed out, if the map is unlocked by gimgunlock or similar that unlock code is not needed. Check you've named the file correctly, XT cannot recognise 'anyname'.img. Try gmapsupp.img or gmapprom.img as names and ensure the file size is under 2GiB. The maps go directly in the Garmin folder.

Originally Posted by Neil

if the map is unlocked by gimgunlock or similar that unlock code is not needed

More, if you put the .unl along an unlocked map, Garmin wont see it