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iMac Intel 21.5" EMC 2544 Display Replacement

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  1. iMac Intel 21.5" EMC 2544 Display Replacement, Display: 手順 1、 1の画像 1
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    iMac Intel 21.5" Cardboard Service Wedge
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    • With the hinge free to move, the iMac will be unbalanced and hard to work on. Repairs can be completed as shown, but are faster and easier with an iMac service wedge.

    • If you are using the iFixit cardboard service wedge, follow these assembly directions to put it together.

    • Before beginning any work on your iMac: Unplug the computer and press and hold the power button for ten seconds to discharge the power supply's capacitors.

    • Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.

    I have (21.5 inch, mid 2017, 2.3 ghz) base model same as this but not 4k. How much max ram can I install in my iMac??

    Narendra Verma - 返信

    This guide contains many extra steps for what should be a straight forward, simple parts replacement without disturbing more than the display, left hand speaker and removal of 4 logic board screws for play. Nothing else except for the left hand speaker wire & iSight cable from logic board, the lower support bracket and loosening the speaker so as to move it around a bit.

    For the ram, I bent a pair of cheap tweezers long ago supplied with these replacement kits to the perfect angle for holding, locating and inserting the ram into the slots under the logic bd after moving each retainer w/spudger and popping out the old. Pay attention to the orientation of the ram when removing/inserting the ram! An automotive mirror is handy along with a small flashlight for closeups. Once the ram is aligned properly substitute your fingers for the tweezers, ease it into the slot, push up & engage! Reinstall screws and all else. I have done this job successfully this way countless times. For a tweezers pic contact me!

    Ross Elkins - 返信

    Additionally, if a blade is present, I install the OSx system on the blade and everything else, apps and home folders on the new SSD. You get the very fast boot off of the blade and the full ssd for all else!

    Ross Elkins - 返信

  2. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 2、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 2、 2の画像 2
    • Starting on the left of the display, near the power button, insert the iMac Opening Tool into the gap between the glass panel and the rear enclosure.

    • The hub on the iMac Opening Tool will keep you from pushing the wheel in too far. If using a different tool, insert no more than 3/8" into the display. Otherwise, you risk severing antenna cables and causing serious damage.

    • Be gentle! The glass may crack if pried too much. Use a hairdryer to heat the edges and loosen the tape if the room temperatures are low.

    Always use a hairdryer!! I cracked my glass

    8bit !!! - 返信

  3. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 3、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 3、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 3、 3の画像 3
    • Use the tool like a pizza cutter—roll it along through the gap, and it will cut the foam adhesive through the center.

    • Be sure to always push with the handle behind the cutting wheel. If you pull, the wheel might get pulled out of the handle.

    • Run the tool up along the left side of the display.

  4. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 4、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 4、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 4、 3の画像 3
    • Continue running the tool up around the top left corner.

  5. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 5、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 5、 2の画像 2
    • Cut the adhesive along the top left of the display.

  6. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 6、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 6、 2の画像 2
    • Continue along the top of the display.

    • You may want to run the tool back and forth through what you've already cut a few times, to ensure you get as much of the adhesive separated as possible.

  7. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 7、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 7、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 7、 3の画像 3
    • Push the tool around the top right corner of the display.

  8. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 8、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 8、 2の画像 2
    • Wheel the tool down along the right side of the display.

  9. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 9、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 9、 2の画像 2
    • Finish pushing the opening tool to the bottom of the right side of the display.

    • At this point, you'll want to run the tool back around the entire display, to ensure you cut as much adhesive as possible.

  10. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 10、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 10、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 10、 3の画像 3
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    Plastic Cards
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    • While the opening tool cut most of the adhesive, the display will still be slightly adhered to the case. A plastic card will be necessary to free up the last of this adhesive.

    • Set the iMac face-up on a table.

    • Starting from the top right corner of the iMac, wedge a plastic card between the display and frame.

    • Be careful not to insert the plastic card more than 3/8", or you may damage internal components.

    Don't forget to place the mac face up on the table. Unlike older models, there is no more flap at the bottom holding the display in place. If you do these steps with the Mac upright, the screen will pop out, hit your table, and shatter :( Don't ask me how I know.

    John M - 返信

    So sorry. Thanks for that caution.

    Ted Horodynsky - 返信

    Using suction cups (the ones that were made for removing the magnetic front glass on the 2011 and earlier iMacs) work well too. Place one in each top corner, while the Mac is lying face up on a table, and gently pull and it will separate the display from the main body. You might need to do a little more slicing around the edges if you did not get all the way through the first time with the roller. Then you can lift the display up at an angle to disconnect the cables.

    Peter Hillman - 返信

    This was a great idea, worked well for me. Thanks!

    Florin -

  11. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 11、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 11、 2の画像 2
    • Gently twist the plastic card sideways to create a gap between the display and frame.

    • Move slowly and be careful not to stress the display glass too much—you only need to make a gap of about 1/4".

  12. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 12、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 12、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 12、 3の画像 3
    • Slide the card toward the center of the display to cut any of the remaining adhesive along the top right corner of the iMac.

    • Be sure to stop before the iSight camera, or you may damage it.

  13. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 13、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 13、 2の画像 2
    • Wedge the plastic card into the top right corner once again and let it stay there to keep the adhesive from resettling.

  14. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 14、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 14、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 14、 3の画像 3
    • Insert a second plastic card into the gap between the display and frame located at the top left corner of the iMac.

  15. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 15、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 15、 2の画像 2
    • Gently twist the card upward, slightly increasing the space between the display and frame.

    • As with the other side, twist slowly to allow the adhesive time to separate, and be careful not to over-stress the display glass.

  16. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 16、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 16、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 16、 3の画像 3
    • Slide the plastic card toward the center, again stopping just before the iSight camera.

  17. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 17、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 17、 2の画像 2
    • Wedge the plastic card back into the top left corner.

  18. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 18、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 18、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 18、 3の画像 3
    • With both plastic cards inserted as shown near the corners, gently twist the cards sideways to increase the gap between display and case.

    • If there are any sections that seem to stick and won't separate, stop twisting and use one of the cards to cut the remaining adhesive.

    • Begin to lift the top of the display up from the frame.

    • Only lift the display a few inches—the display data and power cables are still connected to the logic board.

    Ne forcez surtout pas et soulevez l’écran par les deux extrémités ! Il faut que tous les adhésifs soient bien découpés pour que l’écran se dégage du boitier sans effort. Toute torsion de l’écran peut entraîner une superbe fissure sur le verre :-/

    mf - 返信

  19. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 19、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 19、 2の画像 2
    • While holding the display up with one hand, use the other hand to unplug the display power cable. Make sure that you pull the cable out from the plastic tab, and not by pulling on the color wires.

    • Lift the display up enough to have easy access to the connector, but not so much that you stretch the cables and stress their connections (about 8").

    As seen in photo:

    bottom cable pulls up

    top cable cable pulls right, after safety clip opened

    airshack - 返信

  20. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 20、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 20、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 20、 3の画像 3
    • Use the tip of a spudger to flip up the metal retaining bracket on the display data cable.

    • Carefully pull the display data cable from its socket on the logic board.

    • Be sure to pull the display data cable connector straight out of its socket.

  21. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 21、 2の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 21、 2の画像 2
    • Lift the display up to a near-vertical position.

    • At this point there is still a strip of adhesive along the bottom of the display, that will hold the display to the frame like a hinge. You can loosen this adhesive by working the display up and down a few times.

    There are pull tabs at each side off the bottom edge to allow easy release of the tape

    DarrenG - 返信

    DarrenG’s observation about the pull tabs saved me a ton of time trying to pry the display as per the original instructions. Thanks!

    lesfam5 - 返信

  22. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 22、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 22、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 22、 3の画像 3
    • Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply (boxed in red).

    • Grasp the small tab at the end of one of the bottom edge display adhesive strips and pull the adhesive toward the top of the iMac to remove it.

    • Repeat this step with the other adhesive strip and remove it.

    • If either adhesive strip breaks before it's removed, use a plastic card to slice through the remaining adhesive.

    The roller tool for slicing open the display works great for this step. Get in there like using the card and roll across the bottom to slice through the remaining adhesive.

    Peter Hillman - 返信

  23. iMac Intel 21.5" EMC 2544 Display Replacement: 手順 23、 3の画像 1 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 23、 3の画像 2 iMac Intel 21.5" EMC 2544 Display Replacement: 手順 23、 3の画像 3
    • Lift the display up from the frame and remove it from the iMac.

    • It may be necessary to slowly lift from one side, to peel against the remaining adhesive.

    • Be very careful handling the display—it's big, heavy, and made of glass.

    • During reassembly, head over to our display adhesive guide to install the new adhesive.

    After removing the display, I also removed the 3 screws for the processor fan, disconnected the power connector for it and set the fan shroud aside. Disconnecting the remaining cable (similar style to 1 of the cables for the display) that is in the way of the RAM chips is all that's left to do. I was then able to access and quickly remove the two Apple-provided RAM chips, and replace them with 3rd party RAM. Turning the iMac on its side, so that it's in a position where you're physically putting the RAM chips DOWNWARD into their respective slots is the best way to go about uninstalling and reinstalling the chips. Using a narrow but long'ish plastic spudger tool is the best way to defeat the spring-tabs which hold the RAM chips in place. After removing the LCD display, changing the RAM is about a 10 minute process!! And I'd SURE prefer not to remove all the parts and risk damage to the iMac via the standard procedure listed. As per usual, take your time and work gently :-)

    Mitch K - 返信

    Teardown the whole machine just to change RAM? While preparing to comment on this procedure I just noticed the comment made by Mitch K above. I ran pretty much the same procedure that he describes this afternoon (steps 1-23, 43-45, and step 55). Then I swapped out the original 2x4GB RAM chips for 2x8GB chips by reaching behind the logic board, releasing the spring retaining clips one chip at a time (starting with the chip further away from the logic board), pivoting the RAM towards the back of the machine, and then carefully sliding it out of the slot. I easily slid in the new chips and then pivoted them to lock them down. No hassle, no time lost. As Mitch K states above, not only is this “shortcut” method much quicker and easier, but it provides less risk of damaging cables, sockets and other delicate components during a total teardown. Why mess with the power supply board just to change RAM? I do not advise to follow the current iFixit.com procedure written by Sam Lionheart, regardless of user skill-level.

    nycsandor - 返信

    THAT sounds one !&&* of a lot easier than the full tear down. I wonder if there’s a video of the process described by Mitch K? Adding that to these verbal instructions would really help relieve the apprehension and anxiety around the process! I do sometimes find the additional warnings, though appreciated from a “safety first” perspective, are somewhat overstated. It’s been a very long time since I shorted out RAM, or fried a PCB, or broke a connector, regardless of how finicky, fragile or awkwardly designed and positioned. I may have WANTED to break something, and the air might be blue for a few seconds, but inevitably, things go back together, the start button gets pressed, the startup chime sounds, and we’re in business. Practice DOES make as close to perfect we are likely to get.

    bruce - 返信

    Mitch has the exact method that works a treat. You don’t need to follow steps 24-37 and also 40-63. Step 51 is the step to remove the camera cable and is needed. Steps 38 and 39 are for the Fan. That is all that is needed. Done quite a few like this.

    Be careful not to drop the RAM down the back of the logic board!

    By NOT removing all the other stuff you can avoid either damaging it or forgetting to plug in a cable.

    Charlie Nancarrow - 返信

    I just trued this shortcut and it was not successful. I was not able to seat both RAM chips with this shortcut, and managed to slightly damage one of the retainer clips. I simply could not manipulate the chips into and out of the slots effectively without taking everything apart as described in the full set of steps.. I ended up retracing my steps and following the entire procedure, carefully, and that worked without incident. So, bottomline, it is definitely more work to follow all the steps but from my experience, it is decidedly safer. Your mileage may, of course, vary. It was successful in the end, and I swapped out the hard drive with an ssd during the same procedure and my machine is very, very much faster.

    jan - 返信

    I have completed by following the Mitch K post and it is much easier than stripping down the whole thing, just be aware that to remove and replace the ram chips means working in a tight space, you need slim fingers and don’t be tempted to use force, take your time.

    Barrie Price - 返信

    Well, I have slim fingers, but they are 60 years old, and they don’t work like they used to! LOL.

    Jan Hogle -

    Agree with Mitch K’s procedure. The only added tip I would throw in is to use two 45 degree tweezers with their plastic covers still installed to easily pop loose the RAM. I couldn’t get the plastic spudger tool to work myself, but the tweezers easily reach the RAM clips. Just make sure the plastic covers are installed and you won’t be in danger of scratching or shorting anything out.

    charlesnick - 返信

    So thankful I discovered these comments. Saved me a TON of time! Thank you!!

    Adam Roberts - 返信

    These comments were very useful. Thank you. I just needed to modify a pair of tweezers to allow me to seat the new RAM more easily. The ifixit screwdriver wasn't able to turn some of the screws as they were installed too tightly, and I didn't want to wait to order and reveive a pair of right angled Torx screwdrivers that would give me more leverage to get those boards off.

    Upgrader - 返信

終わりに

To reassemble your device, follow these instructions in reverse and use our Adhesive Strips Guide to reattach the display glass.

70 の人々がこのガイドを完成させました。

作成者

15人の作成者と共同で作成されました。

Sam Goldheart

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22 件のコメント

It was really easy but the display did not power on for me. Any suggestions?

Edward Bennett - 返信

I got to the point where I fit in the display back on before I pulled the covers off of the adhesive strips. I turned the computer on and the display worked perfectly. Everything worked! The camera was aligned and everything! It must’ve been beginners luck.

I turn the computer off, unplugged the display, pulled the covers off the adhesive strips, plugged the display back in and sealed the display down. When I turn the computer on again I had a blank screen. It wasn’t just blank, it never came back on. The iMac did, but the display didn’t. I tried the old display. Same thing. After some research I found that I had burned up a device on my logic board.

So, I am left with only my iPhone and don’t know how to upload a picture in comments or I would show you exactly which one it is.

Kirk D Esco -

Can you replace just the top glass panel.

colin - 返信

it’s all in one display, you cannot disamble onlye glas panel

Mr 0x01 -

Ajudou muito!!!!!!!

kelson - 返信

Done in 20 Min :D

John Grace - 返信

Merci pour ce tuto! Toutefois l’écran est vraiment très fragile et il vaut mieux attaquer directement avec le heat gun vendu par iFixit (ou un sèche cheveux) tout autour du cadre et passer la roulette au fur et a mesure pour éviter que ça craque lorsqu’on veut ouvrir l'iMac. Croyez moi ça craque super facilement si vous tentez d’y aller directement avec la roulette et les cartes en plastique! Je vous conseille aussi de mettre des gants. Je me suis ouvert un doigt la 1ere fois en glissant le long du cadre en aluminium qui est très fin. Comme expliqué dans la vidéo l'écran est plus lourd qu’on ne l’imagine, soyez prudent ;)

Daniel Lafargue - 返信

The key is to be patient. Let the adhesive slowly release. Worked perfectly. I find that old credit card, ID cards, etc work in place of an iFixit plastic card. I strongly recommend the iMac Opening Tool though.

Elvin Lucic - 返信

Also, before using iso-propyl alcohol to clean off the adhesive, first use you fingernail to carefully pull up the edge of a strip and pull on it to remove large sections easily. The bottom strip is fiddly to get an edge of but should peel off in a single piece if you get hold of either end. Makes final cleanup with iso quick and easy.

Elvin Lucic - 返信

What is the bezel made out of? I scratched the black behind the glass when removing the adhesive from the display…

Kalan Howse - 返信

Glass with black paint.

cpaden607 -

I followed the instruction carefully and replaced a hard drive and put display back I just get a black screen,I can heard the chimes but no video.

Help!!

Rosa Diaz - 返信

Check again the flat that connects the display on the motherboard, maybe you didn’t insert it correctly.

PetrosMac -

have you solved ? i had the same problem

cufre -

I completed this repair twice succesfully, but failed on my third iMac. Screen stayed dark after restart, then after it found a startup drive it just gave me blue lines. I reopened and reseated the two cables, but still nothing.

Is there a chance I connected the display data cable upside down? Going to reopen and check it.

sgust - 返信

No luck. The display data cable clearly plugs in with the gold side down, silver side up. I reseated the cable on both the display and the logic board, but still get no image. Time for a new screen, maybe.

sgust -

Very incomplete guidance . Please show how to transfer the temperature sensor cable

Yuan - 返信

There is no temp sensor cable in the 21.5in for 2012+. Only the 27in still have temp sensor cables. So very complete guide.

mdottwo -

Do you have the lcd for sale?

so.roger - 返信

Just tried this and around the middle section the adhesive is so much tougher. I forced it and the screen chipped leading to cracks. Gutted.So be careful at the middle section along the sides.

David Simmons - 返信

Great guide! Today I did 2 screen replacements with much success.


a good idea is to always check if the display is working before sealing, using the tape at the bottom was a marvelous idea. Thumbs up!

guZzy92fs - 返信

I liked the instruction on the ifixit video. I followed instructions. Checked I had power. I saw a green light inside the computer. Sealed it back up. power it on. Heard a Apple chimes, but just got a blank screen. Any ideas on how to restarted it?

William Bache - 返信

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