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Input, Output, Sideput. Whatever kind of puting you will be doing, a faulty I/O board cable is going to severely limit the functionality of your MacBook Pro. This guide will show you how to replace it.

  1. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement, Lower Case: step 1, image 1 of 1
    • Remove the following P5 pentalobe screws securing the lower case to the MacBook Pro:

    • Eight 3.1 mm

    • Two 2.3 mm

  2. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 2, image 1 of 2 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 2, image 2 of 2
    • Lifting from the edge nearest the clutch cover, lift the lower case off the MacBook Pro.

  3. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 3, image 1 of 3 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 3, image 2 of 3 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 3, image 3 of 3
    • The lower case has two plastic pegs (red) that fit into plastic clips in the upper case (orange).

    • During reassembly, gently push down the center of the lower case to reattach the case to its two plastic clips.

  4. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement, Battery Connector: step 4, image 1 of 1
    • Peel back the sticker covering the battery connector.

  5. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 5, image 1 of 3 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 5, image 2 of 3 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 5, image 3 of 3
    • Gently lift each side of the battery connector to pry the connector out of its socket on the logic board.

    • Bend the connector back toward the battery, ensuring that the battery connector doesn't accidentally make contact with the logic board.

  6. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement, I/O Board Cable (Top): step 6, image 1 of 1
    • Remove the four 2.2 mm T5 Torx screws securing the I/O board cable connector covers.

  7. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 7, image 1 of 2 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 7, image 2 of 2
    • Remove the left connector cover.

    • Use the flat end of a spudger to pry the left end of the I/O board cable up from its socket on the logic board.

  8. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 8, image 1 of 2 MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 8, image 2 of 2
    • Remove the right connector cover.

    • Use the flat end of a spudger to pry the right end of the I/O board cable up from its socket on the logic board.

  9. MacBook Pro 15" Retina Display Mid 2015 I/O Board Cable (Top) Replacement: step 9, image 1 of 1
    • Peel the I/O board cable up from the adhesive securing it to the fan.

    • Remove the cable.

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To reassemble your device, follow these instructions in reverse order.

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Andrew Optimus Goldheart

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