Updates & Downloads


Forerunner 405CX software version 2.40

as of July 28, 2011

Use myGarmin Dashboard to install this file.

(783 KB)

View system requirements


Change History

Changes made from version 2.30 to 2.40:

Changes made from version 2.10 to 2.30:

Changes made from version 2.00 to 2.10:

System requirements

  1. IBM-compatible PC running Windows XP or later operating system and an available USB port.