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My Macbook screen suddenly flickering and can not see anything display, but if i plug in HDMI and export to other Screen display then both are woking fine. I have tried to change the IO chipset, display cable but the problem still the same. Someone ask me to change a new macbook display but it cost to much. Can anyone help to resolve this problem? Thanks.
Your logic board has a problem within the Thunderbolt port. It will take some higher skills to debug this. Your other option is to replace the logic board.
