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Use this guide to replace the I/O board.
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crwdns2942207:0crwdne2942207:0crwdns2935267:0crwdne2935267:0P5 Pentalobe Screwdriver Retina MacBook Pro and Air$5.99
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Remove the following ten screws:
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Two 8 mm 5-point Pentalobe screws
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Eight 2.5 mm 5-point Pentalobe screws
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Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.
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Use the flat end of a spudger to pry both short sides of the battery connector upward to disconnect it from its socket on the logic board.
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Bend the battery cable slightly away from the logic board so the connector will not accidentally bend back and make contact with its socket.
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Use the flat end of a spudger to pry the left and right I/O board cable connectors up off their respective sockets on the I/O board.
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Use the tip of a spudger to carefully push on each side of the iSight camera cable connector to loosen it out of its socket on the logic board.
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Peel the iSight camera cable up off the adhesive securing it to the fan.
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Use the tip of a spudger to carefully flip up the retaining flap on the fan cable ZIF socket.
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Remove the following three screws securing the fan to the upper case:
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Two 5.5 mm T5 Torx screws
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One 4.6 mm T5 Torx screw
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Lift, but do not remove the fan out of its recess in the upper case.
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Carefully pull the fan ribbon cable out of its socket as you remove the fan from the Air.
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Remove the following five screws securing the battery to the upper case:
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Two 5.2 mm T5 Torx screws
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One 6 mm T5 Torx screw
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Two 2.6 mm T5 Torx screws
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Lift the battery from its edge nearest the logic board and remove it from the upper case.
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Disconnect the I/O board power cable from the logic board by pulling the cable out of its socket on the logic board.
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Use the tip of a spudger to carefully flip up the retaining flap on the microphone cable ZIF socket.
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Pull the microphone ribbon cable straight out of its socket.
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Use the tip of a spudger to pry under the speaker cable near the connector to lift the connector straight up out of its socket.
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De-route the cable from its notch in the I/O board.
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Remove the small rubber gasket from the corner of the upper case nearest the I/O board.
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Remove the single 3.6 mm T5 Torx screw securing the I/O board to the upper case.
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In some models this is a 3.1 mm T5 Torx screw.
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Carefully lift the I/O board by its power cable and pull it away from the edge of the case.
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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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Great tutorial. I may do this for sure. I get no audio and no microphone on my MacBook air. I took it to Apple and they told me it was hardware and not software. In Settins in Audio, there is no Audio Ouput available and No built in Mic available. Would you imagine this might be what is wrong with my Air?
