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16 GPSMAP 4000/5000 Series Installation Instructions
Updating the Unit Software
Your GPSMAP 4000/5000 series unit may contain a software update SD card. If so, follow the instructions provided with the card.
If a software update SD card is not included, visit www.garmin.com to make sure your chartplotter software is up-to-date. To determine the
version of software on your unit, select or touch > >