Ursprünglicher Beitrag von: dangoldmd ,
Good news. I found a thread in Apple discussions about using an Xcode program to zero out and reset the Bluetooth board. Figured it was worth a shot. Fired up Xcode and downloaded the Utility: hardwareiotools_for_xcode_6.1 . From that I found "Bluetooth Explorer APP" and ran that selecting the first 4 options as instructed. Voila! bluetooth now visible and working after reboot. Thanks for your help.