Why is my iPhone 4 not turning on unless it's plugged in?
I recently replaced my cracked screen. I haven't had any problems with my phone at all. It charged, and I could call and send/receive text messages. Then, I went to a party without bringing my charger, and it was dying. When I looked at my phone it was dead. I plugged it in, and nothing happened. The Apple logo would just show up. After a while, it would turn on— but the date would say that it's December 31, and it was constantly searching for 100% battery life. I unplugged it and it turned off. So, I tried again and did a hard reset—but it still did the same thing. I plugged it into my computer, but it would turn on to just the logo and then turn off and keep looping every few seconds. I keep reading on the internet that people are having this same exact problem, but no one has answered them.
Also, while my phone is plugged into the wall charger and my phone is on, it will only last maybe two minutes. Then, this grey film appears and the phone turns off—and then because it's still on the charger, it turns back on.