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Restore Bluetooth after firmware upgrade System
Recently I got an upgrade from Apple -- a firmware upgrade for Bluetooth on my PowerBook. I ran the upgrade, but I didin't notice for a while that my Bluetooth device wasn't there any more. I took my laptop to the Apple shop, and we booted it from another latop (in FireWire target disk mode -- nifty), but still no Bluetooth.

Then a friend mentioned that you had to reset the PRAM. Well, command-Option-P-R doesn't work on my laptop (it has open firmware with the password set). I discovered I had to reboot with Command-Option-O-F (to boot into open firmware), type in my firmware password (you have one of those on your laptop, don't you?), and type reset, hit Enter, then type reset-all, and hit Enter again.

Hey presto, my Bluetooth is back. Whew. Oh and I forgot to mention, when I tried to reboot after the FireWire trick, my laptop wouldn't boot. It wanted the FireWire disk. You have to hold down Option while it's booting up to look for another disk (or reset the PRAM).
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Restore Bluetooth after firmware upgrade
Authored by: stephenj on Dec 02, '04 12:21:58PM

For a future note it's actually better to reset the PRAM in Open Firmware as follows:

reset-nvram
set-defaults
reset-all

That gets you going a lot better at least in my experience..

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if by chance or circumstance...



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Restore Bluetooth after firmware upgrade
Authored by: Fofer on Dec 03, '04 12:19:41AM

I've had instances where my PowerBook battery got really low and I left it to sleep for many, many hours... to the point where it it wouldn't wake up and actually shut down, requiring me to plug it in, let it power up cold (and of course, charge back up again.)

The few times that has happened, the Bluetooth status menu has a line through it, indicating that it's not sensing the hardware. (Other than that, everything else is fine with the PB.)

What I've done to bring it Bluetooth back, is shut down and reset the PMU: That's shift+ctrl+option+ power for 5 seconds.

I rarely use BT on this PowerBook but I leave the menu item there so I can keep track that it's working or not.



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Restore Bluetooth after firmware upgrade
Authored by: slong on Dec 27, '04 11:41:22AM

I have a PowerBook G-4 and none of these things brought back my bluetooth. Are there any other ideas?

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slong



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Restore Bluetooth after firmware upgrade
Authored by: dgrizzle on Nov 30, '09 05:42:39PM

IT WORKED! Reset the PMU: That's shift+ctrl+option+ power for 5 seconds worked for me after using my MacBook G4 (OS X 10.4.11) to mount a Snow Leopard MacBook Pro via Firewire Target mode. Thanks for the tip!



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