My iPhone was shut off for about a month and i went to turn it on and i held the power button for a full minute so i thought it was dead.

My iphone was shut off for about a month and i went to turn it on and i held the power button for a full minute so i thought it was dead. I charged it and about thirty minutes of it being on the charger i tried again and it still didnt turn on so i left it on for a full night and still nothing? What happened ?

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