MacBook Pro WiFi hardware config problems

Recently, I have experienced the problem with my Mac Book Pro mid 2009.
The WiFi module couldn't detect any WiFi network.

I have tried all naive solutions, like recreating WiFi config, restart the computer. Nothing helps.


Fortunately, I have found this article - http://www.cnet.com/news/tackling-the-no-wi-fi-hardware-installed-error-in-os-x/

And the second solution - reset the PRAM - helped me. After reseting the hardware configuration, my Mac saw all WiFi networks.

I hope this little note will be useful for somebody.