New retina screen is flickering

My 2015 12 inch screen broke, so i bought another 2015 12 laptop without a logicdrive and put mine in. now, the screen flickers all the but works perfectly when I plug an external screen through HDMI.

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Screen flicker can be either a backlight problem where the full display lights up and then goes out, or it can be the T-CON board which is part of the display assembly.

Can you take a short vid and post it here so we can see what you are facing Adding images to an existing question

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