Samsung Galaxy S4 suddenly started to get hot whenever I use it for something.

[AC Question]

So I've had the phone for a couple of months now and I had no issues with it. Yes, it would get hot, but only when playing games or intensively using it. Now whenever I use it to do something it starts to get hot. Is it possibly a OS problem? Did it decide to go rogue? I've formatted many times the phone from settings and from recovery mode.

It's getting annoying and I don't even know why it's happening because like I mentioned, it didn't do that before.

 

[belodion]

Take a look at the battery. If swollen, it's gone bad and will need replacing. Even if not swollen, it may still be bad.
*Caution: Swollen batteries are dangerous and may burst.