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I saw in last month these year som flickering after I open display or I typed. Then show up black line at bottom display. Then more and more, maybe because it was more warm outside.
Last week I have macbook in room, normal temperature, and came back after 30min and lines flickering like shadow on full display was added.
I connect it with HDMI and it is OK, screen mirroring is OK too but that is just software thing I think. I remove battery, of course then I discovered that apple suppress cpu load, and heating is no longer problem. Fan works OK. Display connector seems to be properly sealed. Battery I buy if I know where the problem with the screen is. Q what this can couse that issue ?Q where can be problem ?Q what else should i look at ? Thx
Sadly your displays T-CON board is falling! What you are seeing is the horizontal scan messing up. Time to replace the replace assembly MacBook Pro 13" Retina (Late 2013-Mid 2014) Display Assembly or 13” MacBook Pro Display Assembly, Apple P/N 661-8153 and here’s the guide MacBook Pro 13" Retina Display Mid 2014 Display Assembly Replacement
