Hi, thanks.Found the right menu item.But after entering the serial number, an error appears -

Hi.No, device is not covered by an active service contract.New shortcut give window, as attaced in file.But i cant find "Get Other Licenses > TelePresence Software Release Key".Thanks. :( 

Hi, I have the same problem.After switching on SX20, are prompted to make an update. The result is an "Add a valid release key"error.After reset to factory settings nothing has changed. I can't find the old key, link www.cisco.com/go/licence not work...