It's basically what I've told about in [Only registered and activated users can see links. ] second part. It's still a problem with "Commerce ..." even with that download directly from Garmin and booting with displaying a message about unpacking & installing the ZIP-archive.
I will erase LEX_PKG structure again and try the steps again. I can't however see that the mentioned installation process in post #63 & #64 differs from the one already tried in [Only registered and activated users can see links. ].