I have a first generation NVR and 8 cameras, one of the cameras went bad so I found a new first generation on eBay, the problem is the firmware on the new camera is not up to date. I cannot find the firmware for these cameras anywhere and when I go to their support site they say the android app on my phone will allow me to update the firmware remotely but that isn't the case. I'd like to do it manually, can anyone point me to a location where I can find the firmware files?