Updates & Downloads

SW,LTDM20, UMWT, System Code, AOER software version 3.20

as of August 2, 2022

Use Garmin Express to install this file.

(506.33 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.

System requirements

1. IBM-compatible PC running Windows 2000 or later operating system and an available USB port.