Recent content by alastairstevenson

  1. alastairstevenson

    dahua nvr require specific serial cable?

    Well done for getting there, and sharing.
  2. alastairstevenson

    R0 / DS-2CD2x32 BrickfixV2 brick recovery and full upgrade tool - enhanced.

    For info - the EN and CN versions of the BrickFixV2 tool have different language settings in the header to cover when the currently installed firmware would reject one with a language mismatch error. And the very latest R0 series firmware is 5.4.800 here ...
  3. alastairstevenson

    dahua nvr require specific serial cable?

    Have you confirmed that the 'gender adaptor' does not swap pins 2 & 3? If so, either purchase a USB to RS-232 null-modem cable, or a null-modem adaptor for the standard DTE cable.
  4. alastairstevenson

    dahua nvr require specific serial cable?

    To make it almost like a null-modem connection, pins 2 and 3 needed to be reversed. If 2 goes to 2 and 3 goes to 3 on the adaptor the interface adaptor will not connect to the serial console.
  5. alastairstevenson

    dahua nvr require specific serial cable?

    Does this mean that the (unspecified) model of NVR has a DB9 connector on the back panel? If so, the 'gender adaptor' must convert the connections of the usual RS-232 serial interface to those of a 'null-modem' cable, in particular swapping pins 2 & 3 around. If you have a multimeter it would be...
  6. alastairstevenson

    Not getting ONVIF events on Amcrest IP8M-DLB2998EW-AI Panoramic camera in Blue Iris

    To check if a claimed ONVIF compatible camera actually generates ONVIF events, you can check with ONVIF Device Manager. Give ODM some login credentials, top left of the window, and check the Events folder to see. ODM will detect an ONVIF Device automatically.
  7. alastairstevenson

    *SOLVED* Swann NVR softbricked after firmware update - Currently on uBoot console

    Trying to answer your questions - A manual inspection of the firmware with a hex editor can often reveal a header that indicates how the firmware is packed. And the positions within the file where they are located. Then the tool binwalk can also be used to confirm the main components so that...
  8. alastairstevenson

    PW reset

    What firmware version are the cameras running? You can see this if you install the Hikvision SADP tool, and connect the PC to an unused NVR PoE port. No need to change the PC IP address. If it's 5.4.4 or earlier the camera password should be able to be extracted, which is usually the same as...
  9. alastairstevenson

    DS-7608NI-I2/8P recover firmware

    It looks like the tftp command only downloads uImage to memory and doesn't write it to flash. Then the update command still loads the corrupt uImage from flash and fails on startup. So the question is, how to apply the uImage to flash?
  10. alastairstevenson

    Mean Well power supply for POE+ Switch

    That sounds very thorough and prudent.
  11. alastairstevenson

    DS-7608NI-I2/8P recover firmware

    Yes, that's to apply a uImage file. Your bootloader transcript suggests the uImage is corrupt. It's guess work which uImage to use not knowing the firmware version, but see attached from the K51 4.1.64 firmware. If that works - but the main firmware is then found to be corrupt as well, see if...
  12. alastairstevenson

    Mean Well power supply for POE+ Switch

    Did you have an incandescent lamp in the mains feed or have a Variac for that first power-on after repair? Just in case it want's to blow up again.
  13. alastairstevenson

    DS-7608NI-I2/8P recover firmware

    Is that when using a bootloader command, or when the NVR itself probes for a firmware update at power-on? Do you know what version of firmware was installed on the NVR? Also - what tftp updater are you using? With the firmware filesize greater than 32MB, the Hikvision tftp updater won't work...
  14. alastairstevenson

    Firmware for IP Camera (DS-2CD3346WD-I)

    "an English firmware version" won't change the language the camera uses and will likely not install with a 'language mismatch' error. . The camera region / language is defined by the device-specific protected 'bootpara' data that's written into the camera itself during manufacture. This holds...
  15. alastairstevenson

    Interesting YouTube Series Starting - Hikvision Security Camera Firmware Security

    I suspect, without testing to confirm it, that doing setenv <one of the variables allowed to be changed> <value> saveenv would automatically calculate and write back the correct Uboot CRC As you say though, interesting to watch. Especially as he includes the bits that don't work as intended.
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