Upd — Hi Sharp Dvr Reset Password

: Some models feature a small button or pinhole on the motherboard. While the unit is powered on, hold this button for 5–30 seconds until the system beeps or reboots. [26, 29, 30] Motherboard Shorting

For advanced users only.

For older or non-responsive units, some users perform a hardware reset, though this is more advanced: hi sharp dvr reset password upd