- Jan 17, 2017
- 16,203
- 27,171
Dahua OEM NVR NVR5216-16P-4KS2 NVR5216-4KS2 failure to boot OSD black
Purpose: To document a failure on a Dahua OEM NVR and hopefully post the fix / solution.
Background:
Dahua OEM NVR had been running fine 24/7 for months.
Decided to add another HDD to the NVR.
Shutdown the NVR: properly shutdown the NVR from the OSD ( On Screen Display ) control
Unplugged the power, disconnected the power cable, the ethernet cables, the mouse...
Took cover off
Installed 2nd HDD
Cleaned some dust off the fans w/a a q-tip and alcohol, inspected NVR board - looked nice and clean.
Re-installed the case cover.
Reconnected the ethernet patch cables to the PoE ports. Re-connected the mouse.
Powered up the NVR, expecting the OSD to come up.
Failure:
OSD failed to come up. I did briefly see a 4x4 grid appear. ( see attached photo )
Inspection and testing:
Connected a monitor to the VGA port.
Connected a monitor to the HDMI port.
Disconnected the 2nd HDD, later also disconnected the original HDD.
Checked connections of all wiring on the board.
Motherboard has 2 led lights which came up.
Front of case showed both power and networking lights come up.
Back of case showed the networking power active when connected to the switch.
Nmap on a system connected in the same LAN showed the following once the NVR had been powered up for awhile:
OK, so the NVR is up and somehow responding
Ping works well
So, let's see what ports are open
Purpose: To document a failure on a Dahua OEM NVR and hopefully post the fix / solution.
Background:
Dahua OEM NVR had been running fine 24/7 for months.
Decided to add another HDD to the NVR.
Shutdown the NVR: properly shutdown the NVR from the OSD ( On Screen Display ) control
Unplugged the power, disconnected the power cable, the ethernet cables, the mouse...
Took cover off
Installed 2nd HDD
Cleaned some dust off the fans w/a a q-tip and alcohol, inspected NVR board - looked nice and clean.
Re-installed the case cover.
Reconnected the ethernet patch cables to the PoE ports. Re-connected the mouse.
Powered up the NVR, expecting the OSD to come up.
Failure:
OSD failed to come up. I did briefly see a 4x4 grid appear. ( see attached photo )
Inspection and testing:
Connected a monitor to the VGA port.
Connected a monitor to the HDMI port.
Disconnected the 2nd HDD, later also disconnected the original HDD.
Checked connections of all wiring on the board.
Motherboard has 2 led lights which came up.
Front of case showed both power and networking lights come up.
Back of case showed the networking power active when connected to the switch.
Nmap on a system connected in the same LAN showed the following once the NVR had been powered up for awhile:
[command prompt]:~$ nmap -sn 192.168.1.0/24
Starting Nmap 7.01 ( Nmap: the Network Mapper - Free Security Scanner ) at 2018-07-24 14..
[.. editted .. ]
Nmap scan report for 192.168.1.108
Host is up (0.00024s latency).
Starting Nmap 7.01 ( Nmap: the Network Mapper - Free Security Scanner ) at 2018-07-24 14..
[.. editted .. ]
Nmap scan report for 192.168.1.108
Host is up (0.00024s latency).
OK, so the NVR is up and somehow responding
[command prompt]:~$ ping 192.168.1.108
PING 192.168.1.108 (192.168.1.108) 56(84) bytes of data.
64 bytes from 192.168.1.108: icmp_seq=1 ttl=64 time=0.550 ms
64 bytes from 192.168.1.108: icmp_seq=2 ttl=64 time=0.537 ms
64 bytes from 192.168.1.108: icmp_seq=3 ttl=64 time=0.503 ms
64 bytes from 192.168.1.108: icmp_seq=4 ttl=64 time=0.526 ms
64 bytes from 192.168.1.108: icmp_seq=5 ttl=64 time=0.500 ms
^C
--- 192.168.1.108 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3997ms
rtt min/avg/max/mdev = 0.500/0.523/0.550/0.024 ms
PING 192.168.1.108 (192.168.1.108) 56(84) bytes of data.
64 bytes from 192.168.1.108: icmp_seq=1 ttl=64 time=0.550 ms
64 bytes from 192.168.1.108: icmp_seq=2 ttl=64 time=0.537 ms
64 bytes from 192.168.1.108: icmp_seq=3 ttl=64 time=0.503 ms
64 bytes from 192.168.1.108: icmp_seq=4 ttl=64 time=0.526 ms
64 bytes from 192.168.1.108: icmp_seq=5 ttl=64 time=0.500 ms
^C
--- 192.168.1.108 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3997ms
rtt min/avg/max/mdev = 0.500/0.523/0.550/0.024 ms
Ping works well
So, let's see what ports are open
[command prompt]:~$ sudo nmap -Pn 192.168.1.108
Starting Nmap 7.01 ( Nmap: the Network Mapper - Free Security Scanner ) at 2018-07-24 ..
Nmap scan report for 192.168.1.108
Host is up (0.00040s latency).
All 1000 scanned ports on 192.168.1.108 are closed
MAC Address: 3C:[..editted..] (Zhejiang Dahua Technology)
Starting Nmap 7.01 ( Nmap: the Network Mapper - Free Security Scanner ) at 2018-07-24 ..
Nmap scan report for 192.168.1.108
Host is up (0.00040s latency).
All 1000 scanned ports on 192.168.1.108 are closed
MAC Address: 3C:[..editted..] (Zhejiang Dahua Technology)
Last edited:
