My iphone 4 screen won't turn on! Please hep?

While using my iphone 4, it frozen and would not let me exit the page i was on. So in efforts to fix it, i locked my phone. When i tried to unlock it, the screen would not display anything; it was just black. I tried connecting it to my computer and an outlet. It make a charging noise but it won't turn on. My lock button is broken and the home button takes a lot of pressure to make it work. Someone please help!

Umm… Yikes. You should hold the home button and power button at the same time for 10 seconds. This is a force restart, so update if it works!