[A-to-the-J]

Hey, so lately, my phone has not been charging properly because it's been getting really hot. Whenever I get home from school, I'll plug it in, and within 10 minutes, it's stopped charging and is really hot. So I'll leave it off the charger for like half an hour and plug it back in and it's fine. Is there anything I can do? I've taken it in before for this when it was fully stock and they said that there was nothing wrong with it just because it gets hot.