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MacBook Unibody Model A1278 Mid Wall Replacement

Introduction

This guide will show you how to replace the Mid Wall on from your laptop.

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  1. MacBook Unibody Model A1278 Mid Wall Replacement, Access Door: étape 1, image 1 de 1

    • With the case closed, place the Unibody top-side down on a flat surface.

    • Depress the grooved side of the access door release latch enough to grab the free end. Lift the release latch until it is vertical.

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  2. MacBook Unibody Model A1278 Mid Wall Replacement: étape 2, image 1 de 1

    • The access door should now be raised enough to lift it up and out of the Unibody.

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  3. MacBook Unibody Model A1278 Mid Wall Replacement, Battery: étape 3, image 1 de 1

    • Be sure the access door release latch is vertical before proceeding.

    • Grab the white plastic tab and pull the battery up and out of the Unibody.

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  5. MacBook Unibody Model A1278 Mid Wall Replacement, Lower Case: étape 4, image 1 de 1

    • Remove the following eight screws securing the lower case to the chassis:

    • One 3 mm Phillips screw.

    • Three 13.5 mm Phillips screws.

    • Four 3.5 mm Phillips screws.

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  6. MacBook Unibody Model A1278 Mid Wall Replacement: étape 5, image 1 de 1

    • Using both hands, lift and remove the lower case off the upper case.

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  7. MacBook Unibody Model A1278 Mid Wall Replacement, Mid Wall: étape 6, image 1 de 1

    • Remove the four 10.3 mm Phillips screws securing the mid wall to the upper case.

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  8. MacBook Unibody Model A1278 Mid Wall Replacement: étape 7, image 1 de 1

    • Lift the mid wall out of the upper case.

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Conclusion

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

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