Q: The touch is unresponsive since the USB cable has connected to the interactive whiteboard.
A: The touch stops working usually due to the USB port. The port may be aging since the computer is used for a long time. If the computer is used for a long time, it may result in the aging port.
1. Try another USB port. If it doesn't work, try another computer.
2. If it doesn’t matter with the computer, contact the after-sale service for a new USB cable.