If the project itself is password-protected and you cannot upload it, you may need a Project Password Reader tool designed for Delta DOP series. Note that these are third-party solutions and should be used responsibly for recovery purposes.
If you need to enter the local system settings on the hardware itself, you can usually enter the menu by pressing and holding the SYSTEM button on the rear of the HMI for 3 seconds while powering it on. unlock delta hmi password
I should structure the answer to first check the default password, then consider a factory reset, use configuration tools, or contact support. Make sure the language is clear and avoids any illegal suggestions. Also, mention the risks of each method, like data loss from a factory reset. If the project itself is password-protected and you