glsillygili macrumors 6502a Original poster Dec 16, 2011 507 457 New York Nov 17, 2020 #1 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?
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?