I have a US model DS-2CD2132F-I camera that I purchased used (reported working at time of purchase). Unfortunately it doesn't seem to boot. There are no indicator or link lights, and the IR LEDs stay on. The SADP tool does not show anything, and I am unable to ping 22.214.171.124. Is this poor camera completely bricked, or is there any other recourse? Of course it's too late for me to return it. The instructions I found here for restoring a bricked camera depends on it obtaining an IP, which this one does not. Thank you for your help!