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When I use my MacBook. Sometimes the colors start turning more of an ugly hue and blend in with the surrounding colors. It looks really ugly, and I haven’t found anyone with similar issues. It sometimes reverts back to normal, and taking a screenshot of it looks normal when the colors are working the way they should.

Image of Broken Colors Thank you in advance for any suggestions, and I’m sorry if there is something I’m missing that should be obvious.

What does an external display show? If it is clean then the displays LVDS cable needs attention. If the external shows the same thing the GPU logic on the logic board needs attention. Update (02/18/2018) Most likely you’ll need to replace the LVDS cable from the display to the logic board. Here’s the IFIXIT guide to get the display off so you can gain access to the cable: MacBook Pro 15" Retina Display Early 2013 Display Assembly Replacement. Once you have the display off you can slide the black clutch cover off to gain access to the connection on the display. Here’s the cable you’ll need: Retina MacBook Pro 15" Hinge, Left - LVDS cable - Apple P/N 818-2882