Hikvision DS-7208HGHI-SH inherited - admin password reset - HELP needed

Hello,

I inherited a Hikvision DS-7208HGHI-SH DVR as part of a system that is installed in the home I bought.
I did get a username and password but that user is an "Operator". I do not have the admin password and it is not one of the default ones.

Is there a way to reset the admin password without having the current one?

Have a serial number from the user system information screen as well as
Firmware version: V3.1.17, Build 170615

I also have a verification code from that same...

Hikvision DS-7208HGHI-SH inherited - admin password reset - HELP needed