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mpainesyd

macrumors 6502a
Original poster
Nov 29, 2008
689
168
Sydney, Australia
I just tried installing an Apple software update for the Thunderbolt port and it has frozen my 2015 iMac while restarting (wheel has been spinning for more than 10 minutes now).

I don't like to force a shutdown during a firmware update but might have to do it in this case.

My advice - don't install the latest update. Fortunately my Macbook does not have Thuinderbolt and so I still have a workable machine.

Update: I forced a shutdown (with the power button) and it booted up without problems but warned that a software update had not been installed.
 
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