The touch function doesn’t work when an external device is connected (you are able to launch the menu):
Did you connect a USB cable?
Is the USB cable connected to the right port?
When connected to one of the two upper HDMI ports, then please ensure the external device is connected to the upper port.
When connected to the lowest HDMI port, DP port, AV in port or VGA port, then please ensure the USB touch-cable is connected to the lowest touch port.
The touch function doesn’t work in all input sources:
Is ‘Menu gesture’ turned off? When it’s turned off, it is not possible to launch Prowise Central by placing 5 fingers on the screen. Open the menu using the remote control and navigate to ‘General’ under settings. Switch on the toggle ‘Menu gesture’.
Has the touch function been disabled using the remote control? Then press the red button on the remote control to enable or disable the touch function of the screen.
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