There are three reasons for cell phone disconnection:
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1, the layer of glass on the surface of the capacitive screen mobile phone has been subjected to a certain amount of antistatic treatment, but it may eventually cause the screen to break touch due to the static electricity of the human body in winter.
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2, the temperature of the phone reaches about 40 degrees, it is possible to cause the capacitive screen drift, long-term at this temperature, the capacitive screen is broken, resulting in the phone broken touch.
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3, it may also be water that causes the mobile phone components to be damaged and broken.
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This may be because your charger is not the original charger used by the mobile phone or is not matched with the mobile phone resulting in broken contact, you can replace a charger to try, in the replacement of the charger must look at the model, the input and output to match the mobile phone, otherwise it will cause the mobile phone charging broken contact or heat phenomenon.