My phone got very hot, then the screen stopped working?
So a couple days ago, I traveled from chilly New York weather into very hot weather in Costa Rica. Shortly after I arrived in Costa Rica, my phone started getting very hot after me just using snapchat for a mere 5 minutes. It got so hot it hurt to hold and then the screen went black. I knew the inside lf the phone was still working because I'd plug it in and it would make the sound or I'd flick the ringer and it would buzz. So I held down the power button to turn it off and the phone cooled down. I tried restarting it by holding the home and lock button (although, not for a long time.) Nothing happened. Now its been nearly 3 days and I've had no luck. How can I save my phone?! There is no Apple here!