Move the AirPort board bracket towards the bottom of the display case with the tip of a spudger so that it does not block the AirPort board cable.

Use the tip of a spudger to disconnect the AirPort board cable by rocking it back and forth until it is free.

The AirPort board connection cable can be inserted both ways. The two sides of the connector look slightly different. However, inserting it upside down will cause a short circuit upon power on and damage the logic board and/or Airport board, so be careful to note the correct orientation.