iPhone 4 won't turn on

I'm having trouble turning on my iPhone.

I was listening to music and had to pause it to listen to somebody speak, and when I went to resume the song, the phone wouldn't turn on. It had an 80% or so charge. And when I call my phone from another phone, it rings instead of going straight to voicemail. And when I called, it also did not ring/vibrate.

I called and b*****d at Apple Tech Support for a good 45 minutes, and I don't think anything the guy said will help me. I've had it plugged in for about 10 minutes, charging, and it still won't come on.


Help?

 

Press and hold the Home button and the Sleep/Wake button at the same time, when you see apple logo let go.

See if that works.

 

Took a few tries, but it worked. Thanks!