I dropped my phone earlier in the week and replaced the glass screen and digitizer... I did everything that was on the tutorial and when I put everything back together my phone wont turn on.
Welcome to Android Central! Also, are you sure the phone itself isn't turning on at all? Does it vibrate at all, or do you hear any sounds when you try to power on? If so, then the screen installation probably wasn't correct, or the replacement screen itself may be faulty.