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
Apple Myth 12 – How to install macOS Catalina (10.15.7) on unsupported Mac computer - ACE
macOS Catalina, Big Sur, Monterey & Ventura Incompatible with Microsoft Office 2008 & Office 2011 - Charlotte Street Computers - Apple Authorized Service Provider
macOS Catalina: Installatie bootable USB stick maken - appletips
How to update from Catalina 10.15.7 to Catalina 11 on a 2011 Macbook : r/MacOS
Amazon.co.jp: Apple iMac 21.5" A1418 Late 2012 Integrated OS Catalina 10.15.7 [3rd Generation i5 8G 1TB Wireless BT Camera 21.5" ] Bluetooth Good : Computers