- The touchscreen suddenly gets black and the machine stops in the same time.
- The touchscreen is defective.
- The port for touchscreen on the controller is defective
- The touchscreen's wire is defective
- Please make a video of the touchscreen when you power on the machine. If the touchscreen is powered on, and the screens will be backlit. Send me the video and I need to check it.
- Please try to connect the Wi-Fi in Luban as shown in the video.