marc847575

Hi, I hope you can help me. I have a dvr the number it's DR042ZB-B on the mother board it's written 674BM V02A When I power it on, appears H.264 in red and digital video recorder with one beep, and it s stop here. I try hard reset (tp5 - tp6) I try all the firmware on http://www.ussscctv.com/Technical_Supports.htm And also DR42 firmware on https://sites.google.com/site/avtechutilityita/be-v-1 But nothing.... he won't boot up. If someone can help me, it will be great. Thanks, Marc