ALD LCD Customer Display Troubleshooting 

Why is the virtual COM port missing after installing the utility on your Windows system?

If your display isn’t working, revisit installation steps—especially drivers, software settings, and connection ports. That missing piece might be hiding in plain sight!

Double-check the following:

To install the utility, run in Administrator mode and disable Driver Signature Enforcement on Windows.

• Why Administrator Mode Is Needed ?
• Modify system settings.
• Install unsigned drivers/utilities.
• Access protected directories.

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How to Install the ALD Customer Display Utility on Windows ?

Installation Steps 

1. Download the ALD Utility –
   • Visit the official vendor or support site to get the installer.
   • Download ALD Customer Display utility
2. Disable Driver Signature Enforcement –
   • Required for unsigned drivers to install properly.
   • Hold Shift and click Restart → Go to Troubleshoot > Advanced Options > Startup Settings → Press F7 to disable signature enforcement.
3. Run Installer as Administrator –
   • Right-click the installer file and select Run as administrator.
   • Follow the on-screen instructions to complete installation.
4. Register the Utility –
   • Enter the registration code (usually found on the device label).
   • Launch the utility from the Start menu or system tray.
5. Configure the Virtual COM Port –
   • After installation, check Device Manager under Ports (COM & LPT).
   • You should see a new USB Serial Device ACODE Customer Display (COMx).
     

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Incorrect Display Content Formatting

If the customer display shows garbled or misaligned text, the issue may stem from an incorrect command set configuration. Always double-check that your POS system is using the correct command set for the display model (e.g., EPSON, LOGIC UTC, DSP800, etc.).

• Mismatched command sets can cause unreadable content, incorrect formatting, or missing display updates.
• Review your software settings and documentation to ensure compatibility.
• If applicable, send a test command manually and verify the response format.

about the command set please check following

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