Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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Is wifi and bluetooth on the same card?

After installing an extra harddrive in the optical drive the wifi hardware installed message is shown. My bluetooth is working.

I had some problems earlier installing the harddrive, and after that nor my bluetooth or wifi worked. Now after opening up again and successfully installing the harddrive my bluetooth works, but not my wifi. Thats why Im wondering if they are on the same card or not.

Device: Macbook Pro 13 inch Mid 2012

I've been following this troubleshoot:

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Review the iFixIt guide Installing AirPort & Bluetooth board. Note the antenna lines go to this board from the lid. It's possible you damaged one of the antenna lines. Use a Ohm meter to read off the resistance of each disconnected line.

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