Had a lot of problems in mine, not sure how to deal with them.
1) missing power to the cameras, no cords provided whatsoever. Got two power cords to the DVR though.
2)Plugged in power to the DVR, cant do anything with it, only RED light shows up when back power switch is turned, but NO on screen display pops up and can't manipulate power from teh front panel or remote. When plugged in, alarm sounds initially, nothing else happens.