Updating the DC20, DC30, DC40 collar using a Garmin Astro 220

Step 1:  Download and Install Garmin Webupdater if you don't already have this on your computer.

Step 2: Connect the 220 to your computer using the USB cable

Step 3: Turn on both the 220 and the collar you want to update

Step 4: Using the 220 Select the Dog you want to update, Press enter.

Step 5: When you are looking at the dog Info Page, (You'll see the Battery and signal strenght bars)

Step 6: Press upgrade Dog Unit

Step 7: Run the Garmin webupdater program on your computer and Follow the Instructions.

Here is a Video Showing how easy it is.