Hello,
I'm trying to put oiltrax on my etrex 20x, which I have downloaded and put on a microSD card (in a folder entitled "garmin"), but I keep getting the error "can't unlock map." I have spent a few hours trying to figure this out. It seems that many of the links on this site are down, so I keep hitting dead ends. I have tired the almighty answer machine google, but am still confused. I would appreciate any advice/help I can get with this. Thanks!