If there is a button: Press and hold it for 15–20 seconds while plugging the power cable back in.
You might be tempted to Google "DVR password hack" or download a "DVR password cracker." Do not do this. dvr login password
If you are still locked out after trying all nine sections of this guide, locate the manufacturer's support number (not a third-party paid hotline) and ask for the "Level 2 firmware reset team." They have master backdoor codes for legitimate owners. If there is a button: Press and hold
The DVR sends a temporary verification code to the registered administrator email address. dvr login password