Updates & Downloads
GPSMAP 66sr software version 2.80
as of October 15, 2020
(21.17 MB)
View system requirements
Notes:
- WARNING: If this software is uploaded to a device other than that for which it is designed, you will not be able to operate that device.
- If attempts to upload software fail, you may need to return the device to Garmin® for service.
Change History
Changes made from version 2.70 to 2.80:
- GPS Performance Improvements
Changes made from version to 2.70:
System requirements
- IBM-compatible PC running Windows 2000 or later operating system and an available USB port.