Hi. So i have a 2017 13 inch touch bar. One day the display suddenly turned black and didnt work. Yesterday i turned it on and the screen started to flicker for about 5 minutes and then it went to normal for about 10 minutes before starting to flicker again. I didnt move it or touch it. Is this a hardware or software issue? I opened it up and the display cable looked fine. I also was able to connect to a dispkay with no flickering but that doesnt worj anymore. Please help 
