My IPHONE 4 DIED? STATIC NOISE?

I was texting on my Iphone,

suddenly the iphone started playing
Static noise out of the ear speaker for 20 seconds,

the next moment the iphone froze up totally.
Now i can't start the Iphone again. What's the issue?

Added (1). I tried to do that. It doesn't work.

Try holding in the home button and the lock/off button until the iphone comes on/ or restarts.

Its been possessed

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