What is the reason why the touch-screen mobile phone has been automatically touching the screen?

1. Try to press the power for a long time to restart the phone. Generally, it will return to normal after restarting the mobile phone, probably because the touch screen of the mobile phone is affected by static electricity;

2. The machine basically adopts capacitive touch screen design. When used in a humid environment, or when the fingers are wet, it is easy to form a conductive layer and the screen drifts.

3. The mobile phone screen is a relatively precise component. If the current ambient temperature is too high or too low, it will affect the display and use of the screen. It is suggested that the screen will drift when the temperature is too high or too low, and it will return to normal after waiting for a period of time in an indoor environment at room temperature.

4. It may be that the battery of the mobile phone is in low battery mode, and the screen is not at normal working voltage, which is prone to drift.

5. In addition to the temporary problems caused by the above reasons, they can be solved by themselves. It is also possible that the screen display fails due to external force squeezing, breaking and disconnection. In this case, you can only find the after-sales maintenance department to check, repair and replace the screen components.

Extended data:

Common faults and solutions of mobile phone touch screen;

First of all, touch screens are not allowed.

Touch the part of the display screen with your fingers, and the corresponding operation cannot be completed normally.

Solution: This phenomenon may be that after the acoustic touch screen is used for a period of time, the reflection stripes around the screen are covered with dust, which can be wiped with a dry soft cloth, and then the power supply is cut off, the computer is restarted and recalibrated. It is also possible that the reflection fringe of the sound wave screen is slightly damaged, and if this happens, it cannot be completely repaired.

Second, the touch screen is unresponsive.

The touch screen doesn't work, and there is no response when touching any part.

Solution: First, check whether all wiring interfaces are loose, and then check whether there is any conflict between serial port and interrupt number. If there are conflicts, adjust resources to avoid conflicts. Then check whether there is any crack on the surface of the touch screen, and replace it in time if there is any crack. Also check whether there is dirt on the surface of the touch screen. If there is, remove it with a soft cloth. Observe and check whether the indicator light on the control box works normally. When it is normal, the indicator light flashes green.

If all the above parts are normal, you can check the touch screen by replacing the control box first, then the touch screen, and finally the main unit.