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Use this guide to replace the dual microphone assembly in your Retina MacBook 2017.
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Power on your Mac and launch Terminal.
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Copy and paste the following command (or type it exactly) into Terminal:
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sudo nvram AutoBoot=%00
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Press [return]. If prompted, enter your administrator password and press [return] again. Note: Your return key may also be labeled ⏎ or "enter."
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sudo nvram AutoBoot=%03
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Remove the following eight screws securing the lower case:
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Two 1.8 mm P5 Pentalobe screws
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Four 2.9 mm P5 Pentalobe screws
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Two 6.1 mm P5 Pentalobe screws
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Wedge your fingers between the upper case and the lower case, starting from the rear of the MacBook between the hinges.
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Keeping a firm grip, lift steadily until the lower case separates slightly from the upper case.
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While holding the lower case in place, carefully flip the MacBook over so the Apple logo faces up.
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Lift the upper case and display together from the front edge and raise it to about a 45˚ angle.
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Use the flat end of a spudger to press and hold the small gold 'battery disconnect' button.
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If the power LED is lit up, continue holding the button until the LED goes dark, and then release. This may take up to 10 seconds.
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If the LED does not light, release the button after 5-10 seconds. Press and hold it again for 5-10 seconds, and release. Finally, press and hold it a third time for 5-10 seconds, and release.
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Close the MacBook and carefully flip it upside-down.
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Lifting from the front edge, open the lower case to an angle of about 45°.
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Use tweezers to peel back the tape covering the trackpad cable ZIF connector.
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Use a spudger to carefully flip up the retaining flap on the trackpad cable ZIF connector.
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Disconnect the trackpad ribbon cable from the trackpad by pulling it gently through its slot in the frame.
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Carefully close the MacBook and flip it over once again, so that the Apple logo faces up.
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Lifting from the front edge, raise the upper case/display assembly to about a 90° angle, and prop it up against something sturdy so you don't have to hold it.
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Add a piece of tape near the track pad to secure the upper case and prevent accidental movement.
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Remove the single 2.9 mm T5 Torx screw securing the battery connector to the logic board.
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As an added precaution, you may physically disconnect the battery by inserting a battery isolation pick between the logic board and the battery connector.
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Remove the two screws securing the USB-C port cable bracket:
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1.1 mm Phillips #00 screw
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3.5 mm T5 Torx screw
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Use the flat end of a spudger to disconnect the USB-C port cable bracket by prying it straight up from the logic board.
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Use a spudger to flip open the retaining flap on the audio jack board cable ZIF connector.
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Disconnect the audio jack board ribbon cable by pulling it straight back out of the ZIF connector.
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Use a spudger to flip open the ZIF connector retaining flap for the dual microphone assembly ribbon cable.
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Disconnect the microphone assembly ribbon cable by pulling it straight out of its connector.
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Remove the two 3.2 mm T5 Torx screws securing the audio jack board to the case.
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Prepare an iOpener and apply heat to the upper case directly behind the microphone assembly.
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Use a fine-tip probe or pick to gently peel the dual microphone assembly away from the case.
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Remove the dual microphone assembly.
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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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