I bought a used DJI racing google. How do I re activate it? I can not make it connecting to my mavic pro2. Someone can help?

Hi there, thank you for reaching out and we're sorry to hear about the trouble. With regards to your concern Unfortunately you can only able to activate the DJI Goggles 1 time only.  You can use these as your reference on how to connect the Goggles you can watch the Mavic Pro part but make sure both Aircraft and Goggles is updated to the Latest Firmware.

I've tried to upgrade firmware through DJI assistant2. When I connect goggle to my laptop, DJI assistant2 seems can not detect the goggle. I can see the goggle as a usb drive through laptop. Is there any control on goggle to initiate communication to laptop?