I was given these instructions for unlocking recording livescope on a Echomap Plus 93sv and they actually work!
- Set Livescope Depth Range to 21ft
- Change color scheme in this order: Amber, Red Shad, Copper, Orange crawfish, Black Emerald, Midnight Blue, Midnight Blue
- Click Menu, Menu ---> Sonar recording option
The resulting file is a .GMB file; I have been unable to find a program that can play it back. I assume this is some sort of debug/internal testing menu that Garmin programmed in.
Anyone have any ideas on how to view the GMB file? I can upload the file to dropbox if anyone wants to try it out.