HO AGGIORNATO UN IMAC 21" DEL 2011, ADESSO SI CHE E' AL PASSO COI TEMPI - YouTube
Big Sur on iMac 27", Mid 2011, flashed 4GB NVIDIA Quadro K4100M by Nikey22, having issues with screen brightness, any ideas? Brightness control was working with Catalina Patcher, after installing Big Sur