How to unlock password on Delta DOP-B HMI?

[Ivan Bratanov]

Hello I have a Delta DOP-B series with a password locked project inside. How can i unlock the password to upload the project from the HMI to the PC?

I have a password unlocker for the Delta DVP seies PLC but not for the DOP-B HMI. Would you please provide me such tool for the HMI as well?

Thank you!

[Robiull]

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DELTA HMI DOP PASSWORD
EasyTech
February 12, 2025, 10:58 AM
This is the TOUCH SCREEN of the imported machine.

When I try to UPLOAD using DOPSoft, a password window appears.

Disassemble the back of the HMI.

The CHIP inside the square is a NAND Flash EEPROM that contains PASSWORD information.
Let's zoom in.

The entire thing is coated so I can't tell the model name.
If you remove the coating well and mount it with a heat gun, you can see the model name.

Some parts are erased and not visible, but combining the front and back provides complete chip information.

Using a ROM writer, align the PIN direction and install it into the adapter.

Read in the BIN file and analyze it. The CHIP is then placed back on the PCB (soldered).
The capacity is large, so analysis takes a long time.

You can upload by entering the correct password.

[Ivan Bratanov]

Thanks for the information! The problem is that I'm not familiar with soldering/unsoldering of the chips. Using just a software would be much easier. I have such for the Delta DVP series and it works great. I'm sure that such product exists but I'm unable to find where to download it from.

[bjyou9999]

This model cannot be decrypted with software.
If you remove the EEPROM and send the BIN file, it can be analyzed.
If you can't solder it, you can leave it to a specialized company.
If you don't have to, just use it.
The choice is up to you.