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Seeking advice re Bluetooth replacement

I have a MBP Unibody 17" 2.66 GHz (Early 2009)

Before Mountain Lion, Bluetooth stopped working. These were the symptoms:

1.The icon in System Prefs disappeared

2. About this Mac>System Report>Hardware>Bluetooth shows: no information found.

Now I've initialised my HD and done a clean install of Mavericks. There is still no icon in Sys Prefs and still 'no info found' in Sys Report.

I've seen the excellent ifixit article-

MacBook Pro 17" Unibody Bluetooth Board Replacement

Using this, I opened up the machine and pulled out/reseated the connections to the Bluetooth board; on reassembling and rebooting, same symptoms.

So I'm about the order a new board, which seems to be the only way to go.

My question is: after replacing it, will the System automatically recognise the Bluetooth board (assuming there's no other problem) and Bluetooth icon return to Prefs?

The question is a little simplistic but am checking in case anyone has through experience any tips/tricks I might need to know.

Many thanks!

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hummm. Just received the new Bluetooth module and fitted it.

On booting, no change in symptoms, i.e. no Bluetooth icon in sys prefs and 'no information found' in the 'hardware>bluetooth' section of sys report.

Opened up again and tried partially unplugging, then replugging/reseating the other end of the Bluetooth cable, nope, no difference.... Must this DIY repairer admit defeat? Thanks folks for any suggestions whatsoever.

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Yes it should. Part of the POST (power on self-test) process is the computer "takes attendance" of the various bits of hardware - that's why if RAM repots missing (etc) you get beeps, or lights, and no boot. If it doesn't you have a connector or other bluetooth component fault.

Bluetooth is not deemed an essential pice of hardware (neither are optical drives) so your system will boot with one absent or problematic.

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many thanks! I have a module on order.

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