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 iMac 27” Core i5 3.2Ghz, 8Gb, 768GB, 1GB GTX 675 MX OS 10.15
macOS Catalina è arrivato: le principali novità e alcuni consigli prima di aggiornare
This version of macOS [10.15/10.14] cannot be installed on this computer
Apple imac 27 (A1312 EMC 2390 mid 2011) Intel i7 MAC OS CATALINA | eBay
How to Install MacOS Catalina on Unsupported Macs | OSXDaily
Fix for "this version of macOS [10.15.7 or 10.14.6] cannot be installed on this computer." - YouTube
mid 2011 iMac tries to update itself to catalina? | MacRumors Forums
macOS Catalina - Wikipedia
My mid-2011 Mac Mini at Home running MacOS Catalina 10.15.1 (DosDude1 Catalina Patcher) : r/mac
Come installare macOS Catalina su Mac non supportati – Guideitech: le migliori guide di tecnologia
Apple iMac 27" Slim intel® Quad-Core i7 3.5GHz Late 2013 (Ricondizionato) macOS Catalina - FlashMac