I just replaced my iPhone 4 battery. The old one burned out (literally). I allowed it to charge for several hours. When it finally turned on the reset screen appeared, then it said to connect to iTunes. I unplugged the phone from the wall and connected it to my computer. As soon as I did that the phone shut off again. I left it connected to my computer, but the reset screen never came on. I even left it overnight. The apple icon will show up and then turn off again. I have tried holding down the home and restart buttons, nothing. The reset screen will only come on if the phone is plugged into the wall charger. The reset screen also shows the battery being at 100%. What is going on?!