Was playing a game when it shut down, won't even charge- any idea where exactly the problem will lie internally please?
Welcome to Android Central! Try pressing and holding Power for 15-20 seconds, which might force a power on. Conversely, it might also force a shutdown, if the phone is actually frozen in an on state, but just with the screen blank. So after pressing it the first time, wait a few seconds then press and hold again for another 15-20 seconds.
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