Installing Software Updates to the Astro 430

Software for your Garmin Astro® 430 dog tracking handheld should be kept up to date to take advantage of improvements and bug fixes. Updates are free and easy to install. You can update your software with Garmin Express at anytime.

Updating Your Garmin Handheld with Garmin Express™ Software

NOTE: If you are looking for help with troubleshooting Garmin Express software issues, visit the Garmin Express Support Page

1. The Garmin Express program must be installed on the computer first. If Garmin Express software is already installed, skip this step

    

2. Connect the handheld to the computer with the appropriate USB cable. If there is a question on the screen of the handheld about entering mass storage, select Yes.

   NOTE: Some newer Mac computers may have only USB-C ports, which would require an adapter. Apple has a helpful support article that explains different USB types, how to identify them, and what adapters can be used: About USB on Mac Computers.

3. 

4. The Garmin Express program will be launched during the installation process. If Garmin Express software is already installed, launch Garmin Express .

   • Windows: Either double-click the Garmin Express icon in the system tray (next to the time), double-click the shortcut on the desktop, or search for Garmin Express in the Start menu.

   • Mac: Garmin Express software can be found in the Applications folder in Finder.

5. Select the desired Garmin product, or click Add a Device and follow the on-screen prompts if your device is not listed.

   

6. Garmin Express software will display the available updates. Click Install or Install All to install all of the updates.

   

7. Review the Terms and Conditions and click Accept to proceed.

   

8. Review the important notes before continuing to ensure the software update installs smoothly. Click Continue.

   

9. Once the update starts, Garmin Express software will display the current progress.

   TIP: Hover your mouse cursor over the progress bar for detailed progress information.

   

10. You will see an Updates complete! message when the update is finished.

    

11. Once complete, disconnect the handheld from the computer and power it on to make sure the software updates installed successfully.

    NOTE: You may need to select Install on the device after disconnecting and powering it on to complete the updates.