If this is a failure to recognize the device error, the following from a Garmin article may help:
All current Garmin devices, when connected to a computer, will communicate in either Mass Storage or Media Transfer Protocol (MTP) mode. If the computer is not detecting the Garmin device, there are a few troubleshooting steps that can be done.
Unplug the USB cable from the computer
Turn the device off and then back on again
Plug the USB cable directly into the device and the other end directly into a USB port on the computer and not a hub or docking station
The device should automatically go into Mass Storage or MTP mode, which is indicated by a picture of a GPS device connected to a tower on the Garmin screen.
To check the computer's recognition of the device on a Windows PC click on the Start menu and select (My)Computer. The device will show in this window if the computer recognizes it. On a Mac, the device will show as an icon on the desktop, labeled "GARMIN", or it can be found by selecting Finder from the dock and viewing the device list on the left-hand side menu within the window.
Note: If the computer still does not detect the device, try plugging it into a different USB port. If the problem persists, try another computer, if available. Ensure the USB cable is not connected to a cradle, if one is attached to the GPS.
Here is a link to the Garmin site itself address the issue of an unrecognized device:
https://support.garmin.com/en-US/?faq=PqkmoJbEgq7JqOKKZAkFK9&productID=69452&searchQuery=not%20recognized&tab=topics
And, the following information from another site may help:
https://www.gpscity.com/questions?qid=44804
You have not indicated the operating system of the computer. Sometimes you can use Garmin Express. Sometimes an older webupdater. It seems to depend upon the OS of the computer and that of the Garmin as to which to use. You may have to contact Garmin help directly if the above is insufficient.
