Introduction

Prerequisite-only guide to safely disconnect the battery before undertaking a repair.

  1. Before starting this procedure, you must disable your Mac's Auto Boot feature. Auto Boot powers on your Mac when you open the lid, and may be accidentally triggered during disassembly. Use this guide or follow the abbreviated instructions below to disable Auto Boot. Power on your Mac and launch Terminal. Copy and paste the following command (or type it exactly) into Terminal:
    • Before starting this procedure, you must disable your Mac's Auto Boot feature. Auto Boot powers on your Mac when you open the lid, and may be accidentally triggered during disassembly. Use this guide or follow the abbreviated instructions below to disable Auto Boot.

    • Power on your Mac and launch Terminal.

    • Copy and paste the following command (or type it exactly) into Terminal:

      • sudo nvram AutoBoot=%00

    • Press [return]. If prompted, enter your administrator password and press [return] again. Note: Your return key may also be labeled ⏎ or "enter."

    • You can now safely power down your Mac and open the bottom case, without it accidentally powering on.

    • When your repair is complete and your Mac is successfully reassembled, re-enable Auto Boot with the following command:

      • sudo nvram AutoBoot=%03

    • Before proceeding, unplug and power down your MacBook. Close the display and lay it on a soft surface, top-side down.

    • Use a P5 Pentalobe driver to remove the six screws securing the lower case:

      • Two 6.2 mm screws

      • Four 3.4 mm screws

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your device.

  2. Apply a suction handle to the lower case near the front-center area of the MacBook Pro. Lift the suction handle to create a slight separation between the lower case and the chassis.
    • Apply a suction handle to the lower case near the front-center area of the MacBook Pro.

    • Lift the suction handle to create a slight separation between the lower case and the chassis.

  3. Insert one corner of an opening pick into the space between the lower case and the chassis. Slide the opening pick around the nearest corner and halfway up the side of the case. This releases the first of the hidden clips securing the lower case to the chassis. You should feel and hear the clip pop free.
    • Insert one corner of an opening pick into the space between the lower case and the chassis.

    • Slide the opening pick around the nearest corner and halfway up the side of the case.

      • This releases the first of the hidden clips securing the lower case to the chassis. You should feel and hear the clip pop free.

    The instruction implies that sliding the pick up to the side of the case releases the clip. This is far from the truth; it takes a pretty strong force to pop the clip open. The plastic pick is a good start, but you need to reach in and pull the middle of that side of the case pretty hard.

    dkraemer2 - Reply

  4. 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. 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. 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.
    • 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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  6. Insert your opening pick once again under the front edge of the lower case, near one of the two centermost screw holes. Give the pick a firm twist to pop free the third clip securing the lower case to the chassis. Repeat this procedure near the other of the two centermost screw holes, popping the fourth clip free.
    • Insert your opening pick once again under the front edge of the lower case, near one of the two centermost screw holes.

    • Give the pick a firm twist to pop free the third clip securing the lower case to the chassis.

    • Repeat this procedure near the other of the two centermost screw holes, popping the fourth clip free.

  7. 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. It may help to pull first at one corner, then the other. In case you aren't able to separate the clip from the lower case you can apply a suction cup next to the corner with the clip and carefully use it as a pulling handle. It may help to pull first at one corner, then the other. In case you aren't able to separate the clip from the lower case you can apply a suction cup next to the corner with the clip and carefully use it as a pulling handle.
    • 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.

      • It may help to pull first at one corner, then the other. In case you aren't able to separate the clip from the lower case you can apply a suction cup next to the corner with the clip and carefully use it as a pulling handle.

  8. Remove the lower case.
    • Remove the lower case.

  9. Carefully peel up the large piece of tape covering the battery connector, on the edge of the logic board nearest the battery. Remove the tape.
    • Carefully peel up the large piece of tape covering the battery connector, on the edge of the logic board nearest the battery.

    • Remove the tape.

  10. Gently peel back the small piece of tape covering the battery board data cable connector. The tape is integrated into the ribbon cable and will not detach completely. Simply peel it back enough to access the connector.
    • Gently peel back the small piece of tape covering the battery board data cable connector.

      • The tape is integrated into the ribbon cable and will not detach completely. Simply peel it back enough to access the connector.

  11. Use the tip of a spudger to flip up the small black locking tab securing the cable in its connector. Use the tip of a spudger to flip up the small black locking tab securing the cable in its connector.
    • Use the tip of a spudger to flip up the small black locking tab securing the cable in its connector.

  12. Disconnect the battery board data cable by sliding it out from its socket. Slide parallel to the logic board, in the direction of the cable.
    • Disconnect the battery board data cable by sliding it out from its socket.

    • Slide parallel to the logic board, in the direction of the cable.

  13. Fold the battery board data cable to the side and out of the way. Fold the battery board data cable to the side and out of the way.
    • Fold the battery board data cable to the side and out of the way.

    The cable is held down with adhesive. Be very gentle with the delicate cable as you peel it back.

    dkraemer2 - Reply

  14. Use a T5 Torx driver to remove the 3.7 mm pancake screw securing the battery power connector.
    • Use a T5 Torx driver to remove the 3.7 mm pancake screw securing the battery power connector.

  15. Use a spudger to gently lift the battery power connector, disconnecting the battery. 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.
    • Use a spudger to gently lift the battery power connector, disconnecting the battery.

    • 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.

Conclusion

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

Dominik Schnabelrauch

Member since: 11/23/2016

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