CarolinaJim is correct; depending on the software level in the 798ci HD Si unit he may have to have the unit up and running before installing the memory card with the waypoints on it.

If that does not work Roy, let me know what software version each of you are running in your units. Also make sure that his 798 unit is recognizing the SD card you sent him by installing it and making a Screen Snapshot. That will let us know whether the 798 unit is recognizing and reading/writing to the SD card.


SeaRay, I don't have the Navionics PC app, so I really cannot help you. Is your using recognizing the memory card at all? Maybe try fully formatting the memory card will help.