T.2.9.2 Is your PC connected to the Display through a USB transfer cable?

Cause

There is a possibility that it is connected to a computer using a USB cable that cannot be used for transferring project files, or that the USB cable driver is not installed properly.

Solution

USB cables that can be used for transferring project files differ depending on the display unit. Connect the correct USB cable. For USB cables that can be used, refer to the following.
T.2.3.1 Is the USB cable compliant for data transfer?

Moreover, verify whether the USB driver is properly installed to your computer.
T.2.3.2 Is the driver for the USB cable installed?