WiFi hardware not installed

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.

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It might be worth starting with an SMC reset. This will often revive hardware that the machine doesn't recognize.

Let's also make sure the computer really doesn't recognize the card. Open System Profiler (Applications/Utilities/System Profiler), select Network/Wi-Fi, and look to see whether the computer detects an interface (probably under the name en1). If it sees the card, then the card should work - at least in theory.

In the 2010 model, the WiFi card has several cables attached: Two antenna cables with coaxial connectors, and a ribbon cable connected to the iSight camera assembly (to my eye, the camera cable has to be how the AirPort card connects to the logic board, as there doesn't seem to be any socket). All this is mashed inside the hinge clutch area, where the display joins the bottom case. It's possible that during the keyboard replacement, one or more of the cables got disconnected or loosened. It's most likely to be the camera's ribbon cable; normally, if the card is connected to the logic board but the antennas are not, you can see the card, but your WiFi range is greatly reduced. Steps 18-24 in the iFixit replacement manual cover the cable attachments.

It's possible that the card is actually dead. Right now, iFixit doesn't list the 2010 card at all; PowerbookMedic.com lists the card as "currently unavailable", but they also list the Apple and OEM part numbers: Apple #661-5593, Mfr. #607-6331-A. I find one such card on eBay for nearly twice PowerbookMedic's price; other online retailers charge up to $120 for the card. Yikes. Try the SMC reset and the cable thing first.

MacBook Pro 13" Unibody Mid 2010 AirPort Card Replacement

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I will try the SMC reset as soon as I get home. As for the cable I have gone back and detached and reattached that ribbon several times. I can't see that being the problem, unless I bent one of the connectors at port.

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When you've got the clutch cover open, it's worth looking around to see if there's anything loose in there. Maybe there's a bit of bare wire or foil that's shorting out a connection.

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