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Follow the steps in this guide to replace the FaceTime HD camera in a 21.5" Retina 4K Late 2015 iMac.
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crwdns2935267:0crwdne2935267:0iMac Intel 21.5" Cardboard Service Wedge$4.99
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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.
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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.
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Use the tool like a pizza cutter—roll it along through the gap, and it will cut the foam adhesive through the center.
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Run the tool up along the left side of the display.
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Continue running the tool up around the top left corner.
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Cut the adhesive along the top left of the display.
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Continue along the top of the display.
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Push the tool around the top right corner of the display.
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Wheel the tool down along the right side of the display.
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Finish pushing the opening tool to the bottom of the right side of the display.
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crwdns2935267:0crwdne2935267:0Plastic Cards$2.99
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Starting from the top right corner of the iMac, wedge a plastic card between the display and frame.
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Gently twist the plastic card sideways to create a gap between the display and frame.
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Move slowly and be careful not to stress the display glass too much—you only need to make a gap of about 1/4".
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Slide the card toward the center of the display to cut any of the remaining adhesive along the top right corner of the iMac.
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Wedge the plastic card into the top right corner once again, and leave it there to prevent the adhesive from resticking.
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Insert a second plastic card into the gap between the display and frame near the top left corner of the iMac.
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Gently twist the card upward, slightly increasing the space between the display and frame.
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Slide the plastic card toward the center, again stopping just before the iSight camera.
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Wedge the plastic card back into the top left corner.
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With both plastic cards inserted as shown near the corners, gently twist the cards sideways to increase the gap between display and case.
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Begin to lift the top of the display up from the frame.
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Hold the display with one hand while using your other hand to unplug the display power cable.
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Continuing to support the display with one hand, flip up the metal retaining bracket on the display data cable.
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Carefully pull the display data cable from its socket on the logic board.
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Lift the display up to a near-vertical position.
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crwdns2935267:0crwdne2935267:0Plastic Cards$2.99
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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.
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Repeat this step with the other adhesive strip and remove it.
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Lift the display up from the frame and remove it from the iMac.
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It may be necessary to slowly lift from one side to peel against the remaining adhesive.
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Use the tip of a spudger to flip down the metal retaining bracket on the camera cable.
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Gently pull the camera cable straight down from its socket on the camera board.
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Disconnect the microphone connector from its socket on the camera board.
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Use the tip of a spudger to flip up the metal retaining bracket securing the camera cable connector to the logic board.
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Pull the camera cable straight away from its connector on the logic board.
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The camera cable is connected to the rear enclosure via adhesive. Gently peel and remove it from the rear enclosure.
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Remove the two 4.3 mm T5 Torx screws securing the camera board to the top of the rear enclosure.
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Lift and remove the camera assembly from the iMac.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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