The following are required to upload the software update into your Garmin GPS unit:
IBM-compatible PC (386 or higher microprocessor running DOS, Windows 3.1x, Windows 98, Windows ME, Windows 2000, or Windows NT 4.0) with an available Com 1, 2, 3, or 4 port.
PC Interface Cable for your GPS unit. The PC Interface Cable may be purchased through your local Garmin distributor or ordered direct from our
Instructions for uploading the new software to your unit:
Download the appropriate self-extracting zip file for your GPS unit into a directory on your hard drive. (i.e., c:\garmin).
Unzip the files into this directory by running the downloaded executable file (.exe).
Connect your GPS unit to a free serial