Installing MacBook Unibody Model A1278 Lower Case

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Replace the aluminum bottom case in a MacBook Unibody.

Sections
Tools
Relevant parts
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Add Note Edit Step 1 — Access Door  ¶ 

  • 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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Add Note Edit Step 2  ¶ 

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

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Add Note Edit Step 3 — Battery  ¶ 

  • 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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Add Note Edit Step 4 — Lower Case  ¶ 

  • 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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Add Note Edit Step 5  ¶ 

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

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

For more information, check out the MacBook Unibody Model A1278 device page.

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