If you have calibrated your MCGS HMI five times, cleaned the screen, and updated the firmware, but the touch response remains erratic, you are likely facing a hardware failure.
: If the touch screen is completely unresponsive and you cannot enter settings, you can plug a USB mouse into the USB port to navigate the menus and trigger the calibration. Recalibrating your Touchscreen | How-To mcgs hmi touch calibration
If you have calibrated your MCGS HMI five times, cleaned the screen, and updated the firmware, but the touch response remains erratic, you are likely facing a hardware failure.
: If the touch screen is completely unresponsive and you cannot enter settings, you can plug a USB mouse into the USB port to navigate the menus and trigger the calibration. Recalibrating your Touchscreen | How-To