Changing the COM port of a Crystalfontz USB Display

USB Driver Installation Instructions

Install Crystalfontz USB LCD Drivers in 3 easy steps.

1. Download Crystalfontz USB LCD Driver
2. Connect the display
3. Change COM Port (Optional)

Right-click the "My Computer" icon on your desktop, then select "Properties" from the drop-down menu.

The "System Properties" dialog box will be displayed. Click the "Hardware" tab near the top of the properties window.

Once the hardware tab is selected, click the "Device Manager" button and the device manager will open.

Click on the small "+" to the left of the "Ports (COM & LPT)" to expand that branch.

The Crystalfontz USB display will be shown. Right-click on the Crystalfontz USB display line and then select "Properties" from the menu.

Once the properties dialog is displayed, click the "Port Settngs" tab:

On the port settings tab, click "Advanced"

The advanced settings dialog will be shown. click on the arrow of the "Com Port Number" drop-down:

Now you can select the new COM port number that you wish to use. Once the new COM port is chosen, click the "OK" button to apply the changes and close the advanced settings dialog.

Click the "OK" button of the properties dialog. The device manager will still be shown, but it may not have updated to show the new COM port assignment. Choose "Action," "Scan for hardware changes" from the Device Manager's menu to force an immediate update:

Now the Device Manager will show the updated COM port. Once you have verified that the COM port is assigned as you would like, you can close the Device Manager.

Please contact support@crystalfontz.com if you need assistance installing Crystalfontz USB Drivers.