: Send this photo to the manufacturer's technical support or use a specialized "Super Password" app to generate a code for that specific date.

: Click the Forgot Password icon (often a question mark ? next to the password field).

: For older generic H.264 DVRs using the P6SPro firmware, removing the round silver battery (CR2032) for several minutes can reset the system clock to a default date (e.g., 2000-01-01).

Move to Method 2.

Most legitimate P6SPRO DVRs actually use a secure reset system via email. This is the that doesn't void your warranty.