How to use this swift software?

[tikvik]

Please could you help us with some brief instruction how we can use your Garmin Extractor? Thank you.

[RomainQuidet]

Hi,
I wrote this tool last year in swift (for Mac). Open the project under Xcode, compile. It will produce a command line tool.
Then run the tool from a terminal, one parameter is the path of the downloaded update from garmin (the file downloaded by Garmin Express for example).

It is not maintained, I created this one shot. I might update it in the future. It's based on several docs found over the net to reverse the firmware.