My volume on my iPhone is turned off why?

It won't work at all I tryed turning it up on ringer and sounds what's wrong with it?

On the side of the phone, above the volume control, there's a switch. Make sure that switch is on. That switch makes your phone entirely silent by turning the ringers off.

Double click the home button to open up the multitasking bar then slide left so that you get the sound bar and turn it up or go into music click a song and turn it up then pause the song and go out of it. Make sure that it isn't on silent

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