Dahua SD50225U-HNI bricked. Please help me to unbrick it

sabatiello

n3wb
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Sep 29, 2019
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The camera turns on but when I connect it to an ethernet swicth the yellow led of the ethernet socket turns on for 1 second and then turns off. I connected the camera with an FT232RL serial adapter connected like this:
gnd-gnd
vcc-vcc
tx-rx
rx-tx
When I turn on the camera with the serial adapter connected, putty gives me the following screen:
Immagine.png
If i send the command printenv Putty gives me the follow screen
Immagine2.jpg
I tried to send the new firmware with the tftp server by performing the following steps:
1. downloaded the fw suitable for my camera at this address NEW SD59225U-HNI Latest New Firmware SD-Eos_MultiLang_PN_Stream3_V2.812.0000007.0.R.210706
2. I unzipped the fw and copied it to TFTP root folder
3. I connected the camera's LAN cable to an ethernet switch
4. connected the ethernet switch to the pc
5. the nic card has the following settings:
ip address: 192.168.254.254
subnet: 255.255.0.0
-
I run TFTPServer.bat first and then Console.bat and these are the screenshots:
Immagine3.jpg
After that I run command.bat but nothing happens

I can't figure out where I'm wrong. Can anyone kindly help me?
 
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