How To Load A North America Map Into Garmin Mobile Xt?
I got Garmin Mobile XT installed into my new Nokia N97, but I bought the phone in Malaysia and so it only comes with maps of Malaysia. I will be returning to the US soon and obviously want to load a US map into the device, how can I do that? Couldn’t seem to find the proper download on the Garmin website. Also, how can I connect the software to my PC? Thanks in advance 
1. On the SD Card – look for the “Gardmin” folder. Check if you see a file named GMAPSUPP.IMG. If exists, rename the North America map file as GMAPSUPP2.IMG and copy that to the “Garmin” Folder
2. Now under the Garmin folder, create a file named GMAPSUPP2.UNL.
3. Open the file and key in the North America. map activation code, save the file.
4. Launch Garmin Mobile xt, settings, map sets and you should see the north america maps as well. select the maps as default and use it.