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glsillygili

macrumors 6502a
Original poster
Dec 16, 2011
507
457
New York
I updated to big sur on a 2015 iMac and now downgraded but it still shows the new boot icon and i'm pretty sure the start up chime is deeper now as well. Is there any way to change it back? Or is this machine just stuck like this now forever?

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