iPhone 4 won't turn on

Try a reboot.....hold the power and home button simultaneously (hold past the swipe bar) till you see the Apple Log appear. The phone should reset (but not lose any settings). Hopefully, that will solve your issue.....

Hmmm......I can't guide you through these next two suggestions, but:

1. Go to the Apple Site and download the ownersmanual. Follow the procedure for DFU mode

OR

2. Go to Google and Google Recboot. Download the software and try that.

If neither solution works for you, you may need to schedule an appointment at your local Apple Store Genius Bar and let them run diagnostics. If they find the phone is defective, they'll replace it.

Good luck and I hope you get your phone back up and running......

I'm glad....you might want to mark this thread answered then. Take care......

yes, today i got the same problem(my iphone4 did not turn on). and i did what he says ;i held the power button and home button simultaneously.

it worked 🙂

wow honestly i just had the same problem, i tried resetting it, connecting it to ma comp, and charging and nothing! after 3 hours i finally got it to work): this phone is worthless...i wish i had never gotten it/: i've been having so many problems with it, and never have i had trouble with the original iphone and the 3g....i'd expect more from apple/:

Same problem here... Put it into DFU mode and doing a full restore.
I sincerely hope it works

You guys are AWESOME!! Thank you!! It was a bad day already, but if I didn't find this thread, it was about to really GTH fast... I was having a heart attack there for a while!