Guide: Installing Garmin Express to Update Your Device

model number

Check to see if the new map version is listed and checked. If the device boots up without "Map Data Missing" errors, your 4NSF update install was successful. If you'd like, let me know: The of your Garmin device If you are seeing a specific error message If you are using a PC or a Mac for the update

  • Connect your chartplotter to your computer using a USB cable (or insert the chartplotter’s SD card into your computer if it supports direct card updates).
  • Click “Add Device” in Garmin Express.
  • The software will detect your unit’s model and current firmware.

Step 5 – Install the 4NSF Update

Tips:

Q4: My device is not on the list for 4NSF. Should I still try?