Brand New iPhone won't turn on????

[still in school]

I just got my iPhone replacement a few hours ago. I turned it on at the Apple store and it was fine (wanted me to connect to iTunes).

I got home, created a new ipsw with pwnagetool while iphone was still plugged in. When pwnagetool told me to turn on the iPhone, my iPhone wouldn't turn on! it's been dead since.

What's wrong and how can I fix this? Thanks in advanced for any help!

 

[saccento]

hard reset

 

[still in school]

the home + power button for 10secs and release the power button?

i've tried that with and without it plugged into my laptop and still nothing

 

[outphase]

Try doing it without letting go of any buttons until the Apple logo appears. Worth a shot.