Although the new Apple operating system macOS Big Sur is officially only supported by current Macs, the software also runs on some models for which support is no longer available. However, some functions may only work to a limited extent.
According to Apple’s official statements, MacOS 11 Big Sur can only be installed on devices that were launched in 2013 or later. The MacBook, MacBook Air, MacBook Pro, Mac Mini, iMac, iMac Pro, and Mac Pro are supported. A normal MacBook must have been released in early 2015 or later in order to download the new macOS version. A Mac Mini may have been on the market at the end of 2014 at the earliest.
However, the website Parrotgeek has now found that installing macOS 11 Big Sur also works on older devices. All you need for the installation is a USB stick with a storage space of at least 16 gigabytes. Of course, the installation of officially no longer compatible Macs is at your own risk. A backup should be carried out before the update. Via the unofficial way, MacOS 11 Big Sur can be made to run on numerous Macs, some of which were introduced in mid-2010. To do this, the user must download the Apple installation package and a free tool. Instructions can be found on the Parrotgeek website.
Some functions are restricted
While the installation itself is easy on many unsupported models, MacOS 11 Big Sur may have some limitations on older hardware. On many models, the WLAN module cannot be controlled, so that a wireless Internet connection is not possible. Mac Pro devices released in mid-2010 and mid-2012 may experience sleep-related issues. The operating system only runs smoothly on three older iMac models.