Chosen Solution
Just replaced the screen on my 2012 Macbook Pro after breaking the old one. Display works fine but my Wifi and Bluetooth are no longer working. Wifi shows as “No Hardware Installed” and Bluetooth as “Not Available” All cables seem to be in nice and solid. I’ve tried resetting NVRAM and SMC, no change. Any ideas?
Double check your antenna cables and airport cable: MacBook Pro 13" Unibody Mid 2012 AirPort/Bluetooth Board Replacement MacBook Pro 13" Unibody Mid 2012 AirPort/Bluetooth Cable Replacement Hope this helps!