MapSource fails to detect the SD card from a Garmin Marine Chartplotter/Sounder

Description

MapSource® mapping software may not detect the SD card for a new Garmin Marine Chartplotter/Sounder if:

• MapSource program is not up to date
• SD Card is not formatted in the chartplotter/sounder

Resolution

• Update MapSource program to the latest version by downloading the update from this link
  
  • Installation instructions are at the very bottom of the webpage
• Format the SD card in the chartplotter/sounder
  1. Insert the SD card into the chartplotter/sounder while it is powered OFF
  2. Power ON the chartplotter/sounder
  3. When the Warning screen appears, select I Agree and the card will be formatted
  4. The card can now be removed and used with MapSource software

When MapSource software recognizes the card, it will read a file on the SD card that was placed there by the chartplotter/sounder. This file will tell the MapSource program what type of chartplotter/sounder the SD card is being used. The MapSource program will then display the card as the actual device (i.e. GPSMAP® 440s).