Following a successful upgrade on my MacMini to 15.0, I was attempting to do the same on my iMac 27" 13,2 But it seems to be acting pretty strangely. It takes awhile to get to have the Upgrade Now screen appear and following my clicking on it, nothing happens. Waiting longer, it goes back to the same Upgrade Now button screen.
I've attempted to reset SMC And PRAM.
Still no joy.
Any ideas what else I could do?
I've attempted to reset SMC And PRAM.
Still no joy.
Any ideas what else I could do?