Wi-Fi cards that require no configuration whatsoever and will work automatically in macOS:.Stock Wi-Fi cards in the X220 are not compatible with macOS.– Please note the warning on the Advanced menu in the BIOS: Setting items on this screen to incorrect values may cause the system to malfunction! The default values will work fine but the wrong settings can prevent your X220 from booting. – To install this modified BIOS from a bootable USB drive, see the instructions here. This modified BIOS will also enable advanced settings and improve battery life under macOS. Install the modified BIOS version 1.46 to remove the whitelist check and permit the installation of a Wi-Fi card compatible with macOS.Please use our contact form if you find anything that isn’t accurate.See the guide here to dual-boot OS X and Windows.See the guide here to install OS X 10.10 Yosemite on the ThinkPad X220.
See the ThinkPad X220 Mojave guides here ThinkPad X220 OS X 10.11 El Capitan Installation Guideįollow these steps to perform a clean installation of OS X 10.11 El Capitan on your ThinkPad X220 or X220 Tablet.
