MacBook Unibody Model A1278 SSD Installation

  • Author: Dozuki System
  • Time required: 15 to 30 minutes
  • Difficulty: Easy

When replacing your hard drive, you must transfer the Torx screws from the old drive to the new one.

Some drive bays have a height of 7 mm, while others have a height of 9.5 mm. Depending on the size of your drive bay, you may need to use a spacer to make your SSD fit properly.

Tools (continued)
Relevant Parts
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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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Step 2  ¶ 

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

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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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Step 4 Hard Drive  ¶ 

  • Remove the single Phillips screw securing the hard drive bracket to the upper case.

  • This screw is captive to the hard drive bracket.

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Step 5  ¶ 

  • Lift the hard drive by its pull tab enough to grab and remove the retaining bracket.

  • Lift the hard drive out of the chassis, minding the cable attaching it to the computer.

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Step 6  ¶ 

  • Remove the hard drive from its cable by pulling the cable connector straight away from the drive.

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Step 7 SSD Installation  ¶ 

  • Remove the four 6.0 mm T6 Torx hard drive retaining posts from the sides of the hard drive.

    • Transfer these screws to your new SSD.

  • If desired, transfer the pull tab over to your new hard drive.

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Step 8  ¶ 

  • For 7 mm SSDs, you'll need to apply a spacer to ensure a good fit.

  • Peel the backings up off the adhesive strips mounted on the spacer.

  • Press the spacer onto the SSD as shown; proper orientation will ensure the spacer does not cover any screws or screw holes.

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

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

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