Iphone 4 won't turn on past the apple sign?

I have had this iPhone 4 and i haven't turned it on for about 3 months as we got a new phone. I have tried turning it on and it doesn't want to, i have got it plugged in for over 1 hour and i hold the home and wake up button for about 1 minute multiple times, and all it does is go onto the apple sign for around 20 seconds and then the screen goes black? I have just clicked restore on my iTunes and it says it will take 6 hours, do you think this will work?

Yes it will restore it to not doubt. It should absolutely work.

First try to hard restart by pressing Lock + Home button till the apple sign appears… Last way is to restore it.

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