HTC One M7 Suddenly Not Turning On or Charging?

Aug 16, 2014
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This suddenly happened after I turned it off (By just turning it off to standby). I've tried connecting it to 2 different chargers, but my phone still isn't showing the red light at the top, like it should when it's charging. I've also tried holding the power button and volume down, power button and volume up button to see if that would help, but it didn't. Will my phone every turn on again? What else can I do to possibly make my phone turn on/charge? The phone is not running a custom ROM. It's running HTC Sense 6 and Android 4.4.3 at the moment. Thanks