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I just installed a replacement WiFi/Bluetooth card I got from iFixit into my late-2012 27" iMac and Bluetooth is not working. WiFi works fine. Could I have installed it wrong or is it likely there is an issue with the replacement? Any troubleshooting suggestions?
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Within the finder, click the menu icon while holding the Option key do you see any of the top four entries with values?
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I will need to test this later, as I currently have the BT dongle plugged in and so it is displaying info related to the dongle and not the internal WiFi/BT card. I did do this before I added the dongle, and from memory Name and Address were blank and the Version was v0 c0.
@Robbin Johnson - A dongle won't show the values, I'm looking at the internal board here.
I removed the dongle. None of my BT devices are now connected. When I do the Option-Click (using a wired mouse), it displays:
Discoverable: Off
Name: <my host name>
Address: <what appears to be a valid address>
Version: v8718 c4096
When I try to open System Preferences > Bluetooth I get the error:
Preferences Error
Could not load Bluetooth preference pane.
(Note that the same info is displayed when I Option-Click the menu bar item once the dongle is reconnected and I can once again use my BT devices)
@Robbin Johnson - Then you have a bad AirPort board or one that's not compatible.
Thanks! I will contact iFixit about replacing the board.
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2 comentários
What fault finding have you done? Rest Bluetooth? Re-set PRAM etc.?
por Chris Stables
I have reset PRAM and the SMC with no luck. I tried to run boot-time hardware diagnostics, but there was an error (a missing file or some such message) and it would not run.
I could not access the Bluetooth system preferences pane -- attempting to open it would timeout and say not accessible(?) -- and the menu bar icon was greyed out and had a diagonal slash across it. From the menu bar I could "turn bluetooth on", but that did nothing apparent.
In order to be able to access my BT keyboard and trackpad (I only have a rather clunky PC-style wired keyboard which I despise) I have since plugged in an old Bluetooth 4.0 USB dongle and that works. I have not yet tried rebooting with the dongle to see if I have access to the keyboard and trackpad during startup.
por Robbin Johnson