Attached working shell scripts for G0 cam on firmware 5.5.82_190130. PSH disabled , busybox 1.20 and telnet enabled in script. (files.tar.gz should contain busybox and modified davinci max compression , not supplied)
It should all be placed on the "/dav" directory.
G0 firmware (IPC_G0_EN_STD_5.5.82_190130)
HIKVISION UK PORTAL