Unplug the USB cable and count to 15 and plug it back in.
If that does not work, press the reset button one time. (Located above the green light, almost behind the board.)
If those don’t work, reboot the computer.
If that doesn’t work, open a trouble ticket for your technician.
Unplug the power cable. Count to 15 and then plug it back in. (Power is located on bottom of board behind pen tray. See slide 10.)
If that does not work, reboot the computer.
If that doesn’t work, open a trouble ticket for your technician.