Carefully peel off the black sticky tape and set it aside.

Don't damage the twisted wire leading to the speaker.

Unscrew the two screws holding the port in place.

Remove the two pin speaker plug by moving it gently from side to side until it comes out of its socket.

Use a spudger to flip open the latch and then withdraw the flat cable.

Lift out the board and replace with a new one. Reattach the black sticky tape.