Most Hi Sharp DVR systems come with a built-in reset feature that allows you to reset the password using the device's menu. Here's how:
Hi Sharp DVRs often use a factory backdoor method involving a reset.dav file.
What you need:
Steps:
Prepare the USB:
Power off the DVR.
Insert the USB into a DVR USB port.
Power on the DVR while repeatedly pressing the ESC or DEL key (watch the monitor).
The DVR should detect the file and reset the admin password to default, usually: hi sharp dvr reset password upd
If your goal is to preserve recordings but reset the device config: