Grab the plastic pull tab secured to the display data cable lock and rotate it toward the DC-in side of the computer.
Pull the display data cable connector straight away from its socket.
When disconnecting the display data cable, do not pull on the black tab secured to the cable lock. We recommend wiggling the cable while applying tension to slowly "walk" the connector out of its socket.
Make sure the display data cable is placed correctly in its socket during reassembly. Failure to do so will result in a partially visible display or no display image at all.
Carefully lift the logic board assembly from the left side and work it out of the upper case, minding the port side that may get caught during removal.
Do not entirely remove the logic board yet!
Ensure that the logic board is free from all connections to the upper case (except the battery connector) before proceeding.
During reassembly, ensure all connectors and cables are not placed underneath the logic board. Some of the ribbon cables are very thin and fragile.
Lift the left speaker assembly out of the logic board.
Deroute the microphone cable from the channel in the left speaker and use the tip of a spudger to dislodge the microphone from its housing within the left speaker.