Another guide that might be helpful is available here. For 802.11ac + Bluetooth as well as Continuity/Handoff support, it may be possible to make the AzureWave AW-CE123H (aka Dell DW1550) card work by following the steps in the guide here.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.If you already have OS X 10.10 Yosemite on your X220 we recommend doing a clean installation of El Capitan, not an update from the existing installation.Videos demonstrating OS X 10.11 El Capitan running on the X220 can be viewed here and here.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.

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