My iPhone4 won't turn on even after being charged for 1 hour and when I plug it into my computer nothing happens

Question

My iPhone4 won't turn on even after being charged for 1 hour and when I plug it into my computer nothing happens. PLEASE HELP

Answer 1

I have a similar (if not the exact same) problem! Here are some more details if they are helpful.
My iPhone 4 died earlier today and will not turn back on. It seemed that the battery died while it was not in use. I attempted to charge it on one charging cord in multiple wall outlets and none worked. Assuming it was a malfunction in the cord, I took my phone home to try charging it there.
Again, I attempted charging it in multiple outlets with a different cord than previously used. None of these seemed to work, though they would flash the Connect to Power screen for a brief moment before returning to a black screen. I assumed that my phone was simply so depleted of battery that it needed a long charge.
I charged it for 30+ minutes without any success, then attempted to charge it through my MacBook instead of through a wall outlet. iTunes did not even recognize that my phone plugged in (and still hasn't). I've attempted charging it for an extended period of time (1+ hour) with no luck. Sometimes when I press the Power button it will flash the Connect to Power screen once more before returning to black.
The Apple logo never appears, nor does any apparent progress on charging. I have attempted holding down the Power and Home buttons simultaneously for 10 - 30 second increments. Still no luck. There is no reason anything should be happening with this phone that I can identify.
I have no warranty and just recently replaced my previous phone which had had similar problems before completely crashing. This is a phone new to me that was previously used but in almost new conditions and factory reset by Apple prior to my purchase.
Does this mean that my phone battery is dead?
Is there anything else I can do??