Can't add device to Garmin Express

Have purchased the Garmin inReach Explorer+, set up as directed but when I try to add the device to Garmin Express it gives me the message "Garmin Express does not support this device." Would really appreciate help.

  • Garmin Express really does not support the legacy iR devices. Firmware upgrades are delivered via the desktop sync program (only). The sync program also handles user data.  I believe you can also sync user data (but not firmware updates) via the legacy Earthmate mobile app.

    Note that GCM also does not support these devices in any way.