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A2116 / 2019 / 3.6 GHz quad-core i3, 3.0 GHz 6-core i5, or 3.2 GHz 6-core i7 processor. Released March 19, 2019.

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Can I replace my cracked 2019 21.5" 4k screen with new 2017 4k screen?

Are the two versions compatible?

Answer this question I have this problem too

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2 Answers

Are you a gambler? Are you willing to take a risk?

Frankly, I wouldn’t do it until I had the display ID info. On the back of the panel you should find it does it match? If not, I think its to big a risk.

21.5” iMac 4K Retina Display Assembly (2019) Apple P/N 661-12564

21.5” iMac 4K Retina Display Assembly (2017) Apple P/N 661-07322, LG ID# LM215UH (SD)(B1)

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I know this thread is old but may find useful to others. I can confirm that YES the 2017 and 2019 4k models use the same panel and are interchangeable. I will also add that I know the 2015 4k and 2017 4k displays are compatible so it may even be possible to use the 2015 4k on the 2019 model.

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@calebbaker - The older panel NITS brightness is less in the 2015 and 2017 displays, I wouldn't use it in either the 2017 or 2019 systems.

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Sure, it may be slightly less bright but it is compatible. Same LCD panel, same control board, same LVDS connector and all.

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@calebbaker - If its your system I can see that would be fine,

But, I've seen a few people here complain as they didn't know their display was swapped out with a less bright unit. So be upfront before you do the repair.

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I don't think you should do this. You should know more about the details display screen. If everything is okay then go forward.

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Chun Lam will be eternally grateful.
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