Introduction
Prerequisite-only guide to safely disconnect the battery before undertaking a repair.
What you need
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Power on your Mac and launch Terminal.
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Copy and paste the following command (or type it exactly) into Terminal:
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sudo nvram AutoBoot=%00
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Press [return]. If prompted, enter your administrator password and press [return] again. Note: Your return key may also be labeled ⏎ or "enter."
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sudo nvram AutoBoot=%03
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Tool used on this step:Magnetic Project Mat$19.95
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Use a P5 Pentalobe driver to remove the six screws securing the lower case:
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Two 6.2 mm screws
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Two 5.3 mm screws
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Two 3.4 mm screws
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Apply a suction handle to the lower case near the front-center area of the MacBook Pro.
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Lift the suction handle to create a slight separation between the lower case and the chassis.
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Insert one corner of an opening pick into the space between the lower case and the chassis.
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Slide the opening pick around the nearest corner and halfway up the side of the case.
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Repeat the previous step on the opposite side, sliding your opening pick under the lower case and up the side to pop the second clip free.
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Insert your opening pick once again under the front edge of the lower case, near one of the two centermost screw holes.
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Give the pick a firm twist to pop free the third clip securing the lower case to the chassis.
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Repeat this procedure near the other of the two centermost screw holes, popping the fourth clip free.
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Pull the lower case firmly towards the front of the MacBook (away from the hinge area) to separate the last of the clips securing the lower case.
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Remove the lower case.
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Set it in place and align the sliding clips near the display hinge. Press down and slide the cover toward the hinge. It should stop sliding as the clips engage.
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When the sliding clips are fully engaged and the lower case looks correctly aligned, press down firmly on the lower case to engage the four hidden clips underneath. You should feel and hear them snap into place.
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Carefully peel up the large piece of tape covering the battery connector, on the edge of the logic board nearest the battery.
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Remove the tape.
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Use the tip of a spudger to flip up the small black locking tab securing the cable in its connector.
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Disconnect the battery board data cable by sliding it out from its socket.
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Slide parallel to the logic board, in the direction of the cable.
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Use a T5 Torx driver to remove the 3.7 mm pancake screw securing the battery power connector.
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Use a spudger to gently lift the battery power connector, disconnecting the battery.
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Lift the connector high enough so that it stays separated from its socket. If it accidentally makes contact during the course of your repair, it could damage your MacBook Pro.
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