Bluetooth has vanished from my MacBook Pro
MacBook Pro (Retina Mid 2012), Catalina 10.15.7. Blue tooth icon on menu bar greyed out, #Bluetooth not available". Shift +alt only renders "Open Packet Logger…". Preference>Network = WiFi Connected, Bluetooth PAN Not Connected. I have attempted every fix and hack I could find through web search. Could it be a possible mechanical device failure? Is it fixable or replaceable in the world of Apple devices?