If the touchscreen on the Xiaomi Pad 8 does not work while it's charging, please refer to the following aspects:
1. If the touchscreen is unresponsive while using the tablet, please press the power button to turn the screen on and off and check if the touch function returns to normal.
2. Please unplug the charger and test the touch screen. If it returns to normal after unplugging the charger, it is usually related to charging interference.
3. Moisture, sweat, or oil can affect the normal recognition of the capacitive screen. Please wipe the screen with a clean, soft cloth and keep it clean and dry.
4. If the touch screen remains unresponsive after the above steps, please contact the after-sales service center for further inspection.