I have a hikvision DVR (DS-7108HGHI-F1) which I've managed to get into a psh / protected shell but can't get a real shell also I can't upgrade my firmware using TFTP, my Firmware version is 3.4.891 and I can't enable ssh and when I do so I get a message saying "Device is Busy". So I used the Serial UART port to get the shell. [There is also a lot of other ports in the circuit board what could that be??] But, I want a real shell and also any settings I do in the WEB gui get erased after a reboot and I posted all the other details as pictures below.
It would be helpful, if anyone can guide me through to get a real shell in my hikvision DVR.
Thanks.







It would be helpful, if anyone can guide me through to get a real shell in my hikvision DVR.
Thanks.






