I mean when I go through the install maps to computer routine in garmin express it does a the downloading from the xt but when I check map install from basecamp they are locked. No problem reading maps and using basecamp when xt plugged in. I have updated the xt. Everything seems as people earlier in thread managed to do but instead of being able to unlock the maps after installation I can't see how to do this
Downloading maps to the computer using Garmin Express downloads a different format map that can be installed on the computer. The maps aren’t downloaded to the computer from the Garmin XT.
If you are on Windows I suggest deleting the maps you think you have downloaded to the PC using Javawa. Don’t do this with your XT plugged in in case you accidentally delete the maps on the device. Then try again, if possible post some screen shots of the steps you take in Garmin Express so we can see what you are doing.
I’ve been able to download maps onto multiple pc’s previously. If you can’t do this now report a bug to Garmin. I doubt it’s locked to one PC deliberately,