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Install OSX on Lenovo ThinkPad T440s


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CPU: i5-4200U 1.6Ghz


Graphics: Intel HD 4400 @ 1920x1080 (IPS)

Storage: LiteOnIt SSD 256GB

Wireless: Edimax EW7811-UN

OS: OSX 10.9.4 Mavericks


BIOS settings:

Set all to default.

Then set Security-> Memory Protection-> Execution Prevention: Enabled

Disable All Security related Options (Security Chip, Fingerprint...)


What's working:

Full QE/CI

Keyboard and trackpad (multitouch)


Brightness Slider (FN+F5 and F6))

Sleep and Wake with Lid




Headphones with autodetect




I use the myhack method for this build, so follow instructions to build your USB installer, set BIOS settings and run the OSX Installation from here http://myhack.sojugarden.com/guide/


  1. After creating your USB installer, run myHack again
  2. Select Install Extra and point to the Extra folder attached (extract it first)  Extra.zip
  3. In BIOS don't forget to change your Bootdevice
  4. Boot up system with USB installer disk (you'll see a white, then a gray screen with cursor only, just wait)
  5. Eventually you get to the screen to select Language
  6. Format the HDD per instruction from myHack site
  7. Select "Use my Own" when prompt and point to the Extra folder in the root of the USB installer drive
  8. Delete the (3) files when prompt
  9. A few minutes later, it will automatically reboot. Remove the USB installer drive
  10. After reboot you can install the WLAN drivers from here: http://www.edimax.com/images/Image/Driver_Utility/Wireless/NIC/EW-7811Un/EW-7811Un_Mac_driver_v1.0.0.5.zip 
  11. Finally run MyFix from MyHack.app
  12. Enjoy
  13. Run this to update Kexts: http://www.osxlatitude.com/edp/documentation/



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