To remove the wireless card, turn the laptop over and remove the screws on the bottom cover and gently pry it off using a plastic tool. Take off the cover, disconnect and remove the battery. Find the wireless module, remove its securing screw and bracket. Disconnect the antenna cables and slide the module out.
To install the wireless card, insert it into the slot and connect the cables. Secure it with the bracket and screw. Reinstall the battery, connect its cable, and put the bottom cover back on, tightening the screws to finish.
