I just recently replaced the keyboard on my MBP because there were a few keys missing. I got it all powered back up and went to get online and it said server not found. Went to network setting and WiFi was showing off. I tried to turn it on but nothing would happen. I removed the WiFi option on the left side of the network settings screen and was going to add it back in but it will not give me the option. Any ideas on why its not allowing me to get on the WiFi? Or why its showing hardware not installed. I also checked to make sure the cables were all secured on to the logic board and they are. Any and all help is appreciated.