Wifi not installed

I have an Early 2011 MBP and have been having severe problems with the wireless and bluetooth card. After using for a week working, my wireless card goes to "wifi not installed" state. I removed the bottom of case, I disconnect the wireless ribbon, I reconnect it, close up the bottom of the MBP, and everything turns on and connects. This happened before and took it to an Apple certfied repair depot and they ran it through diagnositics and it came up with nothing wrong. This is such a petty issue for a near new condition $1700 machine. I am extremely disappointed and hope someone has a better suggestion than replacing the $700 logic board.
Thanks!!!!

The only things that I can suggest which you did not mention that you have already tried are:
http://support.apple.com/kb/HT1411 Apple Portables: Resetting the System Management Controller (SMC) & http://support.apple.com/kb/HT1379 Resetting your Mac's PRAM and NVRAM.
If you have AppleCare, give them a call and tell them exactly what you stated in your post. If you damaged anything when you took it apart, your AC warranty will be voided.
A 2 year old Mac is not "near new" unless you just took it out of a sealed box for the very first time.

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Hello sir,
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hi
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This ipod cannot be used because the required software is not installed. Run the Itunes installer to remove Itunes, then install the 64-bit version of Itunes.

I'm not sure if the error message is related but smart friend was using my computer started deleting Quicktime & Safari and told me that they shouldn't be on my computer as they are not windows product & I can't use them on my laptop. With trepidation but acknowledging I don't know any of the stuff they were talking about, I allowed them to raid my laptop thinking it could be for the best. Now I'm not sure if it is related or not but depsite me having the most recent Itunes updates on both my Ipod 4TH GT, I am getting the following message everytime I connect my Ipod to the computer...and the timing would be about right too:
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dorygirl2009 wrote:
I'm not sure if the error message is related but smart friend was using my computer started deleting Quicktime & Safari and told me that they shouldn't be on my computer as they are not windows product & I can't use them on my laptop.
This "smart friend" really sounds like a collosal moron.
Follow the instructions here: http://support.apple.com/kb/HT1925 to remove and reinstall all Apple products on your computer.
Once you get everything working, the next time your "smart friend" wants to touch your computer, tell them firmly NOT A CHANCE IN ****!
None of your data (media, podcasts, apps) will be affected by removing and reinstalling iTunes.

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Wifi not installed

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