MacBook Pro (14-inch PROLED XDR, M5 Pro or M5 Max) Logic Board Reassembly

Repair procedure with reassembly steps.

Before You Begin

Reassembly

Caution

If you’re installing a replacement logic board, don’t discard the packaging and stiffeners. The packaging and stiffeners must be transferred to the existing logic board before returning to Apple Service to prevent damage during shipping.

Important

• If you’re reinstalling the existing logic board, skip to reassembly step 10.

• If you’re installing a replacement logic board, complete all reassembly steps.

1. Use the Phillips #00 screwdriver to fully loosen the six captive Phillips #00 screws from the top stiffeners on the replacement logic board.

   • Note: The four stiffeners are labeled as follows:

     • TL (top left)

     • TR (top right)

     • BL (bottom left)

     • BR (bottom right)

       

2. Lift the top stiffeners off the replacement logic board and set them aside.

3. Lift the replacement logic board off the bottom stiffeners and set it aside.

4. Position the bottom stiffeners on the existing logic board as shown. Align the screw holes in the bottom stiffeners with the screw holes in the existing logic board. Hold the bottom stiffeners in place and turn over the logic board.

   

5. Position the top stiffeners on the existing logic board. Align the screw holes in the top stiffeners with the screw holes in the existing logic board.

   

   • Important: The captive screws in the top stiffeners install through the screw holes of the logic board and into the screw holes in the bottom stiffeners.

6. Use the Phillips #00 screwdriver to fully reinstall the six captive Phillips #00 screws into the four stiffeners.

   

7. Place the existing logic board inside the reused ESD-safe packaging.

8. Position the packaged logic board in the foam frame.

9. Close and seal the box. Ship the box to Apple Service.

   

10. Ensure that the fan duct covers and flex cables are folded back and secured to the top case with Kapton tape.

    

11. Ensure that the Touch ID flex cable is adhered to the keyboard backlight.

    

12. Use the black stick to hold back the trackpad and battery management unit (BMU) flex cables. Hold the logic board by the edges. Tilt down the SD-card edge of the logic board to position it in the top case. Then lower the right end of the logic board into the top case. Clear flex cables out of the way as you lower the logic board.

    

13. Set the torque value on the 10–34 Ncm adjustable torque driver to 29.5 Ncm. Then use the adjustable torque driver and 5IP bit to reinstall two 5IP screws (923-15346).

    

14. Set the torque value on the 10–34 Ncm adjustable torque driver to 28 Ncm. Then use the adjustable torque driver and 5IP bit to reinstall nine 5IP screws:

    • One screw (923-15337) (1)

      

    • Four screws (923-15336) (2)

      

    • Two screws (923-15339) (3)

      

    • Two screws (923-15339) (4)

      

15. Set the torque value on the 10–34 Ncm adjustable torque driver to 17.5 Ncm. Then use the adjustable torque driver and 5IP bit to reinstall two 5IP screws (923-15335).

    

16. Slide the ends of the following eight flex cables into the connectors:

    • Touch ID flex cable (1)

    • Audio flex cable (2)

    • Microphones flex cable (3)

    • Left speaker flex cable (4)

    • Left fan flex cable (5)

    • Keyboard flex cable (6)

    • Right fan flex cable (7)

    • Right speaker flex cable (8)

      

17. Gently flip down the eight locking levers onto the ends of the eight flex cables.

18. Press the polyester film tabs to the ends of the following four flex cables:

    • Touch ID flex cable (1)

    • Audio board flex cable (2)

    • Microphones flex cable (3)

    • Keyboard flex cable (4)

      

19. Press the ends of the following five flex cables to the connectors on the logic board:

    • USB-C flex cable (1)

    • Keyboard backlight flex cable (2)

    • MagSafe 3 flex cable (3)

    • USB-C flex cable (4, 5)

    • Caution

      • Ensure that the end of each cable is centered on the connection before pressing down.

      • Don't pull on or damage the polyester film around the keyboard backlight connector or the FaceTime camera connector.

        

20. Slide the left end of the left display flex cable clip into the top case while aligning the clip's screw hole with the screw standoff. Then press down on the right end of the clip to snap it into place as shown.

    

21. Press the end of the display backlight flex cable to the connector.

    • Caution: Ensure that the end of the flex cable is centered on the connector before pressing.

      

22. Slide the left end of the right display flex cable clip into the top case while aligning the clip's screw hole with the screw standoff. Then press down on the right end of the clip to snap it into place as shown.

    

23. Press the end of the FaceTime camera flex cable (1) to the connector. Then press the end of the embedded DisplayPort (eDP) flex cable (2) to the connector.

    • Caution: Ensure that the ends of both flex cable are centered on the connectors before pressing.

      

24. Position the following three cowlings over the connectors on the logic board:

    • Right USB-C board connector cowling (1)

    • Display backlight/keyboard backlight cowling (2)

    • L-shaped USB-C/MagSafe 3 cowling (3)

    • Important

      • Ensure that the rounded end of the right USB-C board cowling (1) points toward the hinge side of the computer.

      • Ensure that the tall foam on the right USB-C board cowling (1) faces up. The thin foam faces the connector.

        

25. Use the blue torque driver and 3IP bit to reinstall eight 3IP screws.

    • Five screws (923-15323) (1)

      

    • Three screws (923-15322) (2)

      

Reinstall the following parts to complete reassembly:

• Vent/antenna module

• Bottom case

Important

• Depending on the part replaced, Repair Assistant may be available on the device to finish the repair. Learn how to initiate Repair Assistant.

• Replacing the logic board will change the electronic serial number of the Mac. The new serial number will replace the previous number in System Settings and should be recorded for future reference. The serial number etched on the bottom case will not match the new serial number.