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Check under Apple Menu &gt;&nbsp;About this Mac &gt;&nbsp;More Info &gt;&nbsp;System Report &gt;&nbsp;Hardware &gt;&nbsp;Bluetooth
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Check under Apple Menu > About this Mac > More Info > System Report > Hardware > Bluetooth

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It says 'no information found'
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Have you had the Mac apart at any time? Any chance the bluetooth card has come loose or the antenna wire disconnected?
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Have you had the Mac apart at any time? Any chance the bluetooth card has come loose or the antenna wire disconnected?

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Is wireless working? I think bluetooth and wireless are in the same card.
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Is wireless working? I think bluetooth and wireless are in the same card.

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Bluetooth shows up as unavailable when I click on empty icon on menu. No evidence of bluetooth in system preference, networks
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Bluetooth shows up as unavailable when I click on empty icon on menu. No evidence of bluetooth in system preference, networks

no bluetooth in MacBook Pro

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

Wireless networking is anything related to the transfer of data between two (or more) devices without the use of a physical connection, ranging from getting advice on a new Bluetooth headset to configuring sophisticated enterprise level networks.