Hello, so I found our old LS420 and decided to set it up (it got around a year of use then got disconnected for some reason, we just never got around to hooking it back up). So I hook it up and go to start setting it all up and it says "firmware update available". I go ahead and do it, then the web management page looses connection and it never comes back. when the device reboots, the red light on front is blinking and connecting to the "settings" address just gives a white screen. from best I can tell, the firmware failed to flash correctly. Is there a way I can flash it directly myself? I cant seem to find a way to do it that doesnt require being able to connect to it. I'd assume theres a way to hook it up directly to my PC but I cant find one.