Chosen Solution
My phone screen will not stay on unless I hold it and slightly bend it at the top left corner. When I do that, the screen will sometimes stay on. It was doing this for a few weeks, something I could get by with but quite annoying. Today, however, the screen is not responding at all, however, I can hold the power/volume button and get a vibration for the reset and then click power again to feel another vibration. So the phone is responding, it just won’t turn on at all. What parts should I replace to make it work?
I’m working on the assumption that it’s an issue with the connection between the display and the motherboard. Sometimes my phone works fine. Sometimes, the screen is dark and unresponsive. At other times, the screen is on, but doesn’t respond to touch. And I occasionally get weird static and video artifacts on the screen. The rest of the phone seems fine. Alarms still go off, etc. Like you, tapping or touching the upper left hand corner sometimes has an effect. So I’m assuming is a connection issue. If anyone knows better, please correct me.