Quote Originally Posted by jollyjohn View Post
... After that I made two dummy files in Microsoft word, the .gma and .unl and I made sure to get rid of the .docx extensions so that they really end with .gma and .unl..
Very wrong way ... use [Only registered and activated users can see links. ] for actions like this.
There are a lot of hidden characters in word documents that you don't see, but the software sees.

For answers to other questions, you need to be more detailed. It is possible that you made something else wrong in the procedure.

...Garmin says it is not compatible and there are no updates...
Otherwise, true, on the site
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there is no your device listed