Can someone please help a total noob (first post too). I have a nuvi 1250. I downloaded the file listing in the 1st post, unrared and got a 19.856 meg file called gmapsupp.img.

I then:
1. Downloaded the GarminUnlockerAlternative_v2.4 file
2. I unrared and and read the readme file and followed the directions to place the img file in the "locked" folder.
3. I ran the Unlock Map Directory.exe file
4. I got an error saying:

"something is wrong Unlocked MAP not created
Source IMG file must be in directory named: MAP Locked
Only one source IMG file same time in directory named: Map Locked"

Not sure why since I only have the one img source in that folder.

Can anyone help? I'm stuck and can't use it like this. Maybe I missed a step? The maps on my old GPS are now so out of date they are worthless. I specifically bought the Nuvi to work with this (though am tempted to upgrade to the 1260 to get the bluetooth feature). But the nuvi is worthless to me if i can't get these maps to work. Thank you!