1) Turn on the power management software to see the specific power consumption, the heat is certainly related to power consumption, watching TV fever, then the screen brightness or not adjusted well, or the related playback software itself is too power consumption; It's best not to watch TV when you have a fever.
2) Once the phone is hot, stop using it; Don't use your phone when you feel it getting hot in your hand. If you continue to use the phone when it is hot, it is likely to cause the battery to expand and cause the motherboard to fail.
3) Do not cool down sharply in front of the refrigerator or air conditioner; If the phone is suddenly cooled down, the cold air outside and the temperature difference inside the phone will produce a condensation reaction, which is the same as immersion in water. It's been broken before, so pay attention. Now, if the battery has deteriorated, it will be extremely hot when it is charged, and this problem will be worse when the weather is hot. If the battery often consumes power quickly and gets hot, replacing the battery is also one of the countermeasures. If it is easy to fail because of the hot external environment, it should be cut off from the power supply occasionally with household appliances such as computers and televisions to let it have a good rest.