Terry38

Hi I have a cpcam 551 and I did a firmware upgrade via internet explorer, now my unit only boots up and displays the h264 and then goes into a blank screen? I tried turning the unit off and then back on with the files on a formatted fat32 flash drive and it does not responded at all. Is there anything else I can try? Is there a place where I can buy just the main board? Is there any programming I could try? Regards Terry