Peel off the black tape covering the top of the WiFi card.

Remove the black and white antenna cable attached to the card by pulling them off using the precison tweezers.

BE CAREFUL! The antenna socket is VERY FRAGILE. If you use brute force, the antenna socket on board (female) will be pull out with the male connector.

If you disconnect the antenna cable properly, the socket will remain undamaged like fig.3