If you have the original project file but forgot the "System Password" or "User Password":
To protect the entire project file, go to > Password Protect and confirm with "OK". unlock delta hmi password
| Problem | Solution | |---------|----------| | Lost upload password | Store a copy of the .dvp / .dop file in a network drive and offline backup. | | Operator forgot runtime password | Use a master password feature (available in DOP-100 series firmware 2.00+). Configure a “supervisor” level that can reset user passwords. | | HMI replaced with old backup | Always test the password before deploying a new HMI. | | No documentation | Create a one-page “HMI Password Card” inside the control panel door. | If you have the original project file but
: The user must press four invisible buttons in a specific order (e.g., Top-Left, Bottom-Right, Top-Left, Center) within 3 seconds. Implementation Place transparent buttons on the screen. Configure a “supervisor” level that can reset user
The tool sends a request to the HMI to read the specific memory address where the password is encrypted. Decrypt: The tool displays the password in plain text.