When locked out of a system, the first question most people ask is:
If you have physical access to the DVR chassis, you can revert the entire operating system back to factory defaults. Unplug the power cable from the back of the DVR.
Search for "H.264 DVR super password generator" online or download a tool that supports "generic" or "hi3515" devices.
If your firmware supports it, click the "Forgot Password" or "Get Code" option on the login screen. This may prompt you for a security question or provide a QR code to email to technical support for a temporary password. 3. Super Password Generators
Finding the correct default password for a Multistar DVR can be tricky, as these units often use generic firmware shared across several "white-label" brands. If the "Multistar" label is on your device, it most likely uses one of a few industry-standard combinations. Common Default Passwords for Multistar DVRs