iMac Intel 27" EMC 2546 AirPort/Bluetooth Card Replacement
Introduction
Passez à l'étape 1Use this guide to remove or replace the AirPort/Bluetooth card in your iMac.
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.
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Outil utilisé dans cette étape :iMac Intel 27" Cardboard Service Wedge$4.99
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With the hinge free to move, the iMac will be unbalanced and hard to work on. Repairs can be completed with the iMac laying down, but are faster and easier with an iMac service wedge.
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If you are using the iFixit cardboard service wedge, follow these assembly directions to put it together.
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Outil utilisé dans cette étape :Plastic Cards$2.99
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Set the iMac face-up on a table.
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Starting from the top right corner of the iMac, insert a plastic card between the display and frame.
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With the cards inserted as shown near the corners, gently twist the cards to increase the gap between display and case.
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If there are any sections that seem to stick and won't separate, stop twisting and use one of the cards to cut the adhesive in the problem area.
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Begin to lift the top of the display up from the frame.
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If there is a wire or cable underneath adhesive tape, always pull the tape off first.
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If the cable is glued to the chassis, use a heated iOpener or a hair dryer to soften the adhesive first. You can then slide an opening pick underneath the cable to loosen it. Never pull directly on the delicate connectors.
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Slide an opening pick underneath the foam cushion pieces to separate them from the display, and gently pull them off. You may need some double sided tape to re-attach them to the new display.
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Use the flat end of a spudger to disconnect each of the four antenna connectors from the AirPort/Bluetooth card.
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Leftmost
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Top
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Upper right
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Lower right
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To reassemble your device, follow these instructions in reverse and use our Adhesive Strips Guide to reattach the display glass.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
To reassemble your device, follow these instructions in reverse and use our Adhesive Strips Guide to reattach the display glass.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
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14 commentaires
What is the model of WIFI card?
That's Broadcom BCM94331CD
I ordered a BCM94360CD (802.11ac, same as iMac 2013), plan to upgrade it someday, hope it works
God bless me not to break anything.
Hi Cheng Yao
How about your project to change BCM94331CD to BCM94360CD?
Did you brake anything? Waiting for your result share. :)
Were you able to successfully upgrade the airport card to the new 802.11ac airport card w/o any issues? I have the Late 2012 iMac 27" and I was hoping to do the upgrade.
