1. On a USB-compatible device, download the following file: gc3-126.96.36.19932-prod.2gig
2. Go to your Downloads folder and right-click on this file. Select Rename and ensure the file name is "gc3-188.8.131.5232-prod.2gig".
3. Save the renamed file to a USB drive.
4. Insert the USB drive into the top of the panel.
5. Enter the 4-digit master code to begin the update. The update normally takes about 5-10 minutes.
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