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Model A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 or 3.8 GHz Core i5 or 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K display. Refer to the older iMac Intel 27" Retina 5K Display (Late 2014 & 2015) guides as the system is very similar.

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Is there a way to fix pink lighting around the border of the display?

Sometimes these machines get an issue where the backlight becomes tinted pink all around the edge or border of the display. This seems to happen commonly after removing and reinstalling the display. I'm guessing it's due to some subtle damage to the display during the removal process. I'm wondering if there is any way to repair this issue. Thanks.

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Can you post some pics so we can see what you are seeing Adding images to an existing question

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Hi Dan, I don't have a picture of the computer but it looks almost identical to the image at this link, except in my case there is also ghosting of windows on the display. https://discussions.apple.com/thread/251...

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You will have to replace the entire display to resolve discoloured backlights. I've seen this usually happens when using things like isopropyl to soften the adhesive or putting a cutting tool in too far in that it hits the panel.

I would recommend only using a tool like this to open up iMacs, I have never had an issue with them and they are perfectly sized so they don't damage the panel.

iMac Opening Wheel

iMac Opening Wheel Görseli

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iMac Opening Wheel

$7.99

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Puan 1

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Thanks for the reply! I've opened a lot of these with this tool and most of the time it's fine but every now and then something goes wrong.

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