Hello, I just bought a second-hand Dahua NVR5216-4KS2 and when I start it, it does not advance from the "dahua nvr 4.0" image.
I'm thinking this could be a firmware bug the previous owner had and was wondering how I could fix it.
I have seen that through the RS232 port I could access the boot and reload the firmware but it is not clear to me in the posts I have seen.
I have tried with a usb TTL adapter and with an rs232 to usb adapter but when configuring putty with the baudrate of 115200 strange characters always appear.
Any idea how I can proceed?
Thanks in advance
I'm thinking this could be a firmware bug the previous owner had and was wondering how I could fix it.
I have seen that through the RS232 port I could access the boot and reload the firmware but it is not clear to me in the posts I have seen.
I have tried with a usb TTL adapter and with an rs232 to usb adapter but when configuring putty with the baudrate of 115200 strange characters always appear.
Any idea how I can proceed?
Thanks in advance