Updates & Downloads


GPS Chipset Type M426 (2779) software version 4.20

as of April 18, 2017

Use Garmin Express to install this file.

(559 KB)

View system requirements

Notes:


Change History

Changes made from version 4.10 to 4.20:

System requirements

  1. IBM-compatible PC running Windows 2000 or later operating system and an available Com 1, 2, 3, or 4 port.
  2. PC Interface Cable for your GPS unit. The PC Interface Cable may be purchased through your local Garmin distributor or ordered direct from our Online Store.