Chosen Solution
MacBook Unibody Model A1342 (Mid 2010) 2.4 GHz Intel Core 2 Duo 250 GB storage 2 GB memory OS X Problem: When I upgraded to OS X the Wifi no longer appeared in toolbar or network preferences. No Wifi Image at the top of my screen next to blue toothWifi interface does not appear in network preferencesWarranty is expired My attempts: Ran script to turn the wifi service on & off upon start-upShutdown but Close all apps on the returnSwitched user accountsHold the power button for 10 secs and let shutdownTurned bluetooth on & off then restarted… NothingReset the PRAM.Erased the hard drive.Re-installed the OS (OS X).Software is up-to-dateDeleted the System Config items- But there is no Apple.com.Airport/ Or anything that includes the wifi.Cant reset wii interface since there is no wifi interface.Removed Airport card, cleaned it, then re-installed it. Haven’t tried: Reset the SMCReplace the airport cardTaken into Genius bar for diagnostic. A private repair shop gave me a $200 quote but no diagnosis. Anyone have this problem?? Any tips is appreciated! A solution is great!
How about booting up under the older OS-X recovery disk (or external HD with the older OS) to see if you can see the AirPort card then. Can you tell us what OS-X version you are trying to install and what you had before.
