Install VoodooHDA-v2.8.4.pkg and then follow these steps to configure audio:.Open the Terminal from Applications > Utilities > Terminal and enter the following command to make sleep function more consistently:.Install any system updates available through the App Store.Eject the installation USB and restart the computer.Utility and Kext Pack by selecting all of the kexts and then draggingĪnd dropping them into the Kext Utility window. Use the Kext Utility app to install all of the kexts included in the.Copy dsdt.aml and ssdt.aml from the Utility and Kext Pack to /Volumes/EFI/CLOVER/ACPI/patched/.Replace ist in /Volumes/EFI/CLOVER with the ist from the Utility and Kext Pack.Open the Clover EFI bootloader installer, click Customize, select the following options and then click Install:.Go to System Preferences > Security & Privacy and select Allow apps downloaded from: Anywhere.Issue with these assistants popping up despite the functioning internal Uncheck both Open Bluetooth Setup Assistant options (this prevents an Go to S ystem Preferences > Bluetooth > Advanced... and.Select the new installation drive at the bootloader menu (no boot flags After installation, start the computer with the installation USB and.* Do not continue through any of the additional steps in the UniBeast guide * Boot from the installation USB (use a USB 2.0 port), hit the space bar to skip Bluetooth keyboard setup, and continue with step 4 in the UniBeast guide to do a standard OS X installation to your GUID-partitioned drive (no boot flags are necessary).Download the Clover EFI bootloader installer and place a copy of the installer on your installation USB.Download the ThinkPad x220 OS X Yosemite Utility and Kext Pack and place a copy on your installation USB.Create an installation USB with laptop support using UniBeast by following steps 1 and 2 in the guide here.– Security > Virtualization > Intel VT-d Feature > Disabled – Security > Memory protection > Execution Prevention > Enabled Adjust the following settings in the BIOS:.– Various USB wifi adapters compatible with OS X are listed here – Stock wifi cards in the x220 are not compatible with OS X Optional step for WiFi: After completing step 1, install the patched BIOS version 1.40 to remove the whitelist check and permit the installation of an OS X compatible half-height Mini PCIe wifi card such as the Dell DW1515 or Dell DW1510.
Kext utility repair update#
ThinkPad x220 OS X 10.10 Yosemite Installation Guideįollow these steps to install OS X 10.10 Yosemite on your ThinkPad x220 or x220 Tablet.