Dahua IPC EASY unbricking / recovery over TFTP

[Rsptsa]

I have to double check but yes.
After the last event the nvr is rebooting due to a software reboot :

#Load STORAGE SPINAND
ROSC: 0103 threshold: 0100
D-03 Infinity2_DDR3_32_8X_CL14_2133_EXT_Nanya_20181203-F6.h
EXT_NYA2133_20181203-F6
CPU_1400Mhz
Set CPUCORE to 1.05V
BootSource: SW reset

 

[wesstcoast]

Hello guys, could someone help me salvage my VTO2000A or tell if it's time for a new one?
I have gone through every single page on this thread (1-28) and still can't get my VTO working. Here is what I've done:

1. I am unable to ping the camera regardless the connection method (PoE switch, unmanaged switch with 12v power to camera etc, direct p2p connection etc.)
2. I'm able to access the camera via USB-TTL and ST-LINKv2 (see attached log from U-Boot I've also added the complete startup dump)
3. Using ST-LINKv2 I was able to change the firmware using a HEX file (instructions found here)
4. I know step 2 worked because my language changed from Dutch to English
5. Following the instruction on page 1 of this thread, I got everything setup - see attached image
6. When I power up my VTO after everything is connected (tftp and console running), nothing at all happens. No network activity whatsoever
7. When I run a command such us "run dr" in DHBOOT# I get the following message
   T WARN: emac_send_packet: No link
8. I also see the following messages in a more verbose log:
   davinci_eth_open:no link
   WARN: emac_send_packet: No link
   Retry count exceeded; starting again
   IP-Config: No network devices available.
9. I also don't see any lights burning when I connect the camera to the switch - not sure this is important

Now my biggest fear.
Could this be a hardware issue with my network interface? PoE connection still powers on the VTO by the way.
Could this be a hardware issue or perhaps a software issue that can still be fixed.
Any help or pointers in the right direction will be greatly appreciated. Thanks in advance.

 

[psychoboust]

Hello,
I have a VTH2421FB(W)-P which I tried to upgrade with DH_VTHX421H_MultiLang_SIP_EMEA_V4.800.0000000.0.R.241114.zip.
But I made a mistake and give to ConfigTool 2 times the DH_VTHX421H_MultiLang_SIP_EMEA_V4.800.0000000.0.R.241114_part1.bin ...

Now my VTH screen is black, and when I look to my switch POE status is ON but Port status is OFF.

I tried the Dahua_TFTPBackup.zip (which it already rescued one of my camera) but, nothing happen. I guess the Ethernet port is not running?

There is a COM port behind the VTH with 12 pin (IN1 IN2 IN3 IN4 GND IN5 IN6 N/A N/A GND NO COM), is there a way to use it ?

Any thought ?

EDIT : COM port is an ALARM PORT
EDIT2 : I plug 12V directly in the VTH and it start, it appears POE is not working anymore on the VTH (I tried 3 differents POE switch with different cable, which work with my POE Camera)
Is it possible a firmware issue cause POE stop working ?

Thanks