I feel your pain as I’ve spent literally days trying to load Open Source Maps to my new ETrex 20x. I understand you were successful. Today, I thought I had also figured it out and successfully loaded two regional maps. However, in using the same process on the 3rd regional map, I’m getting the error message “No unlocked maps were found for this device.” Can anyone help?
PS: I did document my process in a two page Word document, but the site doesn’t seem to accept Word uploads as an acceptable attachment type. I tried cutting and pasting here but the formatting got pretty messed up. Not sure how to create an existing document to insert either. If anyone wants to see this document (either for troubleshooting my issue, performing a peer review, or using it on his/her ETrex), please let me know.