Use the spudger to disconnect the coaxial cables from the Wi-Fi card and WWAN card.

When reassembling the Wi-Fi card, reattach the black wire closest to the screw and the gray wire on the other side of the black wire. With the WWAN card, reattach the blue wire on the left and the orange wire on the right.

There are also small color coded arrows on each card that match the corresponding wires, to make sure you connect to the correct spot.