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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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5K display assembly replacement

What is the display assembly part number?

Can it be replaced with older (2014/2015) models displays?

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Can you explain what happened here.

This is such a new system parts are just not available presently.

You're only hope here is brining it to Apple or Apple authorized repair center for service.

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cracked glass (LCD fine) :(

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Ouch! Sorry ;-{

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did you change display, can fit 2014/2015 panel to 2017?

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no i did not but i am interested to know if someone did :)

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It would be risky to try until a parts listing is released.

Update (06/21/2018)

Here is the Apple P/N 661-07323 - Mid 2017 iMac 27" Retina 5K LCD Panel & Front Glass Assembly

It can be gotten from TheBookYard in the UK 27" iMac Retina 5K LCD Display Assembly, Apple P/N 661-07323, LG Display # LM270QQ1 (SD)(C1)

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Yes the 2014-2015 panels and 2017 are different in terms of paper specifications (brightness) but they ACTUALLY CAN BE SWAPPED. I own a repair shop and we have swapped and tested them.

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This is the model for the iMac 27” 2014-2015 display.

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Installed in a iMac 27” 2017 as our customer wanted to use the older model as it is cheaper. Brightness control, Face Time camera, everything works.

Technical specs on paper is one thing, trying out the actual part is another.

There’s a reason why shop technicians don’t like to comment too much in iFixit. We are loaded with tons of customers. We don’t wish to be debating enthusiasts when we are trying to be helpful.

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Yes, but the 2017 LCD is brighter. I managed to find the actual model number instead of the useless Apple part number. The model is LM270QQ1 SDC1.

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Unlike the older displays in the 2011 and older the LCD is fused with the cover glass so unless you got the Apple version it wouldn't work. In addition, Apple uses there own T-CON board so you would need to also switch that over from the other display.

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THAT IS THE ACTUAL APPLE model number. For iMac 5K, they are made by LG and that's the actual LG model number that LG uses for the LCD that made for Apple which is also printed on the back of the LCD.

In the repair and supply industry, everyone quotes the model, not the part number. If you want to DIY, you can get parts direct from China, which is where most Apple parts are made. End users can go through Aliexpress. Most distributors in the US are more like resellers. Some list the part number but not the model because they want to mask it. Distributors tend to sell by model number which is printed on the parts. Apple part numbers are just internal reference numbers Apple use to list in their inventory because sometimes one Apple part can be manufactured by two different companies but Apple will list them as the same part .

Search by model number tends to yield listing for parts that are factory pricing.

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The LG panel is the raw LCD it's not the assembly! Be careful here. I did this once and got a useless part.

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Means your supplier conned you. The 2012 - 2017 slim bezel iMacs with LCD fused with glass are always supplied as a fused assembly unit. Only the older versions sometimes are supplied without the T-Con board.

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Yes & No! The LG P/N is the raw unit if you blindly order it alone without spec'ing the iMac you will get a raw LCD! I have two do you want them?

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This is definitely something I would be interested in finding out as well. The display for the 2017 model is listed as an LM270QQ1-SDC1 and the 2014-2015 Model is listed as an LM270QQ1-SDB1. Spec wise they are the same but will they work for both models?

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They are not the same assembly, they are the same LCD. The logic board on the back of the display is different.

And no, they are not interchangeable across the systems.

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Yes they will actually work. The iMac 27” 2017 has a brighter LCD and a LCD cable with a differently shaped body but the exact same connector pins at the end. It’s not recommended unless you don’t mind that your iMac 27” 2017 will have a a display that’s dimmer than the actual specs. Can’t really tell much of a difference though.

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@just1ed - You would need to transfer the T-CON boards as the I/O to the logic board uses a different cable.

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@danj Not needed at all. Works out of the box. Have you actually tried swapping before answering? See my updated tried and TESTED actual answer with PHOTOS.

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I do not think that displays from a 2014 or 2015 iMac will work on a 2017 iMac. They use different display panels all together. Your best option would be to either bring it into an Apple store and see what they quote you or buy a used 2017 27” iMac like yours and swap the screen on that. Apple usually charges around $600-$1200 for a screen replacement depending on how bad the damage is and the availability of parts at the time of replacement.

There are used displays for your iMac on eBay like this one: https://www.ebay.com/itm/184392127697?ep...

They are much cheaper than what Apple will quote you and they are not very hard to install. Check out iFixit’s guide and see for yourself: 2017年款27寸 iMac 显示屏更换

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Yes the panels are different but they DO WORK. I own a repair shop and we have swapped and tested them.

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@just1ed Yes, but it is always good to use the part intended for the machine.

Also, you won't be getting as good of a display.

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