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Released in July 2018, the 15" MacBook Pro, model A1990, features a 15.4 inch LED-Backlight display with True Tone technology, TouchID, and up to 6 Core i9 Processor.

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Topcase Replacement Issues - Wont display

Hi all,

I had to replace my top case on my 2018 MacBook Pro 15 inch (A1990). I worked through everything slowly and purposefully. When I tried to turn it on it wouldnt turn on. Then I connected the mains power adaptor and it fired up, I heard the chime but nothing on the display. The Touch Bar lit up and I could increase the volume and decrease but nothing else. Now I cant turn the unit off.

Can anyone shed any light on what might have gone wrong with the procedure or what I need to do to get it up and running again!

Many thanks

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4 Comments:

Why did you replace the top case? Do you mean the display lid part or the uppercase keyboard part?

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It was the keyboard part DanJ

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@mansoorahm23124 - OK, did you have a liquid spill of some sort?

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No, some of the keys were missing so thought of replacing the keyboard. Unfortuantely, that meant replacing the topcase in its entirety!

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I would look at the guides and check that the LCD cable is connected and also the battery connection. IF still no improvement then prehaps @danj can give some more insight.

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Mansoor Ahmed will be eternally grateful.
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