Why does the camera get hot when iPhone 7plus takes pictures?

The battery of the mobile phone and the cpu of the main board are running hot, so it is recommended to have a rest before use.

It is normal that the cell phone battery will heat up in general use. If it is overheated, you can wait for it to cool for a while before using it, which can reduce the damage to the battery.

The motherboard cpu, power supply, display, touch and other chips are short-circuited or soldered. It will also get hot.

A capacitor or resistor on the motherboard lost its resistance function, resulting in excessive constant voltage and heating.

Open circuit, short circuit of battery or virtual soldering of circuit board can also cause the phone to heat up.