Some software added to the phone end up using the phone’s power more than usual.
For example: Battery App running in the background of the phone. App that speeds up the internet Task Killer Speed Tester Phone Virus App, Apps that make the phone faster are things that use a lot of phone power. Even if you don’t turn them on, because they are running automatically, they can quickly drain the phone and cause the phone to heat up. Therefore, uninstall and disable those software.
placing the phone in direct sunlight; phone charging. Using the phone is one of the reasons why the phone heats up. Doing this can damage the phone when exposed to strong sunlight. Therefore, the body of the phone is made of plastic and metal, so avoid using the phone under hot sunlight. This can cause the phone to heat up more than normal and damage it