If you have lost your USB cable you can get a replacement. Within Garmin Express, selecting 'Install All' under the 'Updates' tab is the safest option.
Have you saved addresses, routes or waypoints to your device?
Click "Next"Step 9: Looks like we have successfully updated our device- click "Next" This will check if there are additional updates, if no updates are found you may click cancel and your handheld unit is now updated to the most recent software.
Garmin have made a number of changes to their map update procedures in the last year.
Additional Garmin Express features include a "Devices" tab where you can access user manuals, and an "Extras" tab that includes custom voice and vehicle downloads.
You can also receive important updates, notifications, and offers by registering your device through Garmin Express.
The Garmin engineers make improvements in the software all the time.
If you have DC-40, DC-30, or DC-20 collars, the collar updates download into your Handheld at the same time as the Handheld updates.
Then you just select the Collar you want to update and select "Update Dog Unit."Before you begin, you will need to go to Garmin's website and download their "Web Updater" software.
With Garmin Express, you can guard against data loss by backing up this important information.
You can even use Garmin Express to transfer data from one Garmin device to another with one click.
Once you have installed the software on your computer, updating the Astro 430 / 320 Handheld is pretty easy.