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kasperskie

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Posts posted by kasperskie

  2. Posted

    Hi,

     

    I'm trying to unbrick a HDW4431C-A which is stuck in a bootloop after flashing DH_IPC-HX4XXX-Eos_Eng_P_Stream3_V2.420.0000.21.R.20160724.bin

     

    I tried to use a serial connection in order to interrupt Uboot, but it seems like the '***' characters do not interrupt it.

    I've previously used this method successfully on other Dahua equipment, so I know my PC setup/FTDI serial dongle is ok.

    I see the Uboot text, so I know the serial line TX is connected ok. Does anyone know whether the RX line is working ok

    and whether '***' should still work with this camera? Or did they perhaps disable this method in recent firmware builds ?

     

    In case this method is no longer viable, does anyone know another way to prevent the bootloop and allow a firmware update ?

    I tried the method of enabling telnet, but using the http URL to enable this won't work as I seem to loose connection with the camera really fast and the page ends up not loading completely. Even a ping only responds 3 times during the boot phase.

     

    Perhaps using this special TFTP file upgrade_info_7db780a713a4.txt ?

     

    Uboot version which is displayed upon booting is 2010-06.svn3089 (Jun 20 - 2016 - 12:33:38)

  4. Posted

    I'm trying to power a new VTO2000a unit.

     

    This unit is supposed to have POE support.

    However, when I use a regular passive 12v POE injector connector and hook it up to my router, I don't see any connection being made (light on the router doesn't lit). As I can also not connect to the default IP address (should be 10.22.5.189 ?) I think this unit is not using 12v passive POE ?

     

    Do I really need the specific VTNS1060A Dahua switch to power this unit ?

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