Recent content by divx118

  1. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    Something like ft232r US $1.14 |High Quality FT232RL FT232 FTDI USB 3.3V 5.5V to TTL Serial Adapter Module Mini Port|Integrated Circuits| - AliExpress
  2. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    My guess would be the three soldering islands CN11, but I am not sure. For my board they were in a similar position see first post. I have corrected the image links.
  3. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    This for me will create a file with all zeros. except the last byte --> bs=1 count=1 Try the following this will add zeros to the end of u-boot.bin until it reaches the size 16777215 truncate -s 16777215 u-boot.bin
  4. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    No, at least not on my firmware and others also not that would be not logical. It would normally always start at 0x0 maurice@maurice-N73SM:~/Downloads/extract$ binwalk u-boot.bin.img DECIMAL HEXADECIMAL DESCRIPTION...
  5. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    Yeah, you should do that for all the files to get the complete flash. You also could try uboot first and see if that works. Then flash the rest from the uboot shell. To clarify: The user-x.cramfs.img was just an example file.
  6. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    For some reason I cannot read the flash in u-boot when starting at ie 0xb10000 where the web squashfs files starts. It gives me an "ERROR: read/write area is out of range!" I only can read part of the flash, which is weird. It seems locked. So sadly I can't help you with that, however you can...
  7. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    @runekyndal It loads the kernel (zImage) from the romfs image. See the output of the serial console. So if you already reflashed the romfs image, and it still doesn't want to boot the kernel, you are using the wrong firmware. find_squashfs_file: name bin, start_block 0, offset 2676, type 1...
  8. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    If someone wants to build a box with a 3D printer for the NBD8008R - 3536DV100 V1.01 print I have designed a simple one Search Thingiverse - Thingiverse Tinkercad links are also there so you can customize it. There are 3 parts bottom, top and back. HDD can be screwed to the top.
  9. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    @Nyat Huy, that is what I mean. You can get the right files from the firmware file. General_General_NBD8008R-PL_V4.02.R11.7601.Nat.OnvifC.20180901.bin Just unzip the .bin to get the below files and then flash them in uboot. Reflashing romfs, web and custom should get you going again...
  10. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    @kirikomori Thanks for the diagram, I can use that to control the menu with my raspberrypi. @Nhat Huy What do you exactly want? You can just download the firmware and unpack it to get the hex data.
  11. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    A little info on where the settings of the NVR/DVR are stored: In /mnt/mtd/Config/Json are gunzip compressed Json files which contain the settings. NetWork is one of those files it will contain your cams ip and passwords in plain text once unpacked. The .second files are I guess backups. Note...
  12. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    Hmm again an OTA update This time we also have a newly build kernel. ~ # cat /mnt/custom/FirmwareInfo NET_UPGRADE_FILE=General_General_NBD8008R-PL_V4.02.R11.7601.Nat.OnvifC.20180905.bin BURN_FILE=upall_General_General_NBD8008R-PL.7601.Nat.OnvifC.20180905.bin ~ # uname -a Linux localhost 4.9.37...
  13. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    My thoughts, about the device/software after playing around with it. The software/firmware is pretty solid and also looks secure especially when you look at china devices a couple of years back. When the Sofia program is started with dvrhelper it will kill any existing telnetd. (using openssh...
  14. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    I got an over the air update today on the device, so I will do a little write up on how to extract the new firmware from u-boot and upload it to the tftp-server. Make sure you create a filename in the tftp folder from the server that is named the same way you want to use in u-boot to save your...
  15. divx118

    UART/RS232 on NBD8008R - 3536DV100 V1.01

    Just collecting the information here, found a nice python based device manager tool NeiroNx/python-dvr from NeiroNx on github. When I am making some serious progress I can add it all to the wiki in some nice logical order. BTW the tool can also be used on the command line and what is most...
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