A couple of months ago, my iPhone 5 started to have lines on the screen. A common thing that some people do to diagnose that problem is to open the phone and disconnect the connectors to the screen, clean them a bit, and then put them back.
I tried to do it, but once the screen was back in place and I replugged the battery (because I unpluged it for safety reasons when I removed the screen), the iPhone wouldn't turn on.
I've tried the same procedure a couple of times but it still won't turn on.
It's been 3 months now. Can anyone help me?