Updates & Downloads

GPSMAP 378

Update Unit Software with myDashboard

Use myDashboard to keep your device software up to date.

Additional Software

USB Drivers, Ver. 2.3.1, as of May 11, 2012, Download
xImage, Ver. 2.3, as of Mar 23, 2005, Download

Voice Guidance Languages

Voice, GPSMAP 276C/278/296/378/478, Ver. 2.20, as of Oct 30, 2006, Download

Unit Software

GPSMAP 378, Ver. 4.20, as of May 13, 2013, Download