Step 10
Remove the orange tape securing the trackpad ribbon to the logic board.
Disconnect the trackpad ribbon from the logic board.
Remove the upper case from the computer.
Step 11 — Keyboard
On the following step, be careful with the tape on the side of the keyboard with the green power button, as the tape may stick and tear.
Peel back the black plastic shielding on either side of the keyboard (there are two pieces).
Step 12
Use your fingernail to flip up the plastic flaps locking down the keyboard and keyboard backlight ribbon cables (in the picture, both flaps are already up).
Slide the cables from their connectors.