Bluetooth on a new WiFi card not working
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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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