Respuesta a "WiFi not working, AirportCard or antenna?"Both are susceptible to failing, have you checked to see if the card/antenna are seated properly? I'd try reseating it, and then see if wifi connects.
Respuesta a "SSD Upgrade "Kit" without regular tools?"You can do this yourself. Prying out the logic board you could figure out without the supplied tool. But you will need the SATA connector.