S O N O M A 14.1.1

About this Mac

Graphics Info

• Install Sonoma 14.1.1 using this EFI
• If the installation won't proceed, on Device Properties, comment out the PciRoot(0x0)/Pci(0x2,0x0) by adding # infront of it


• Install OpenCore Legacy Patcher and run the program to patch your x250
• Once the installation of OLCP succeeded, uncomment out the PciRoot(0x0)/Pci(0x2,0x0)
• I disabled the itlwm (the file was to large for me to upload all the EFI folder, I need to remove him) for this configuration, add the itlwm kext in the Kexts folder and enable it on the config.plist. To download itlwm click here
  
  

• Secure Boot -> Secure Boot: Disabled;
• UEFI/Legacy Boot: UEFI Only;
• CSM Support: No.

• QE/CI Intel HD Graphics 5500 I think because of the OpenCore Legacy Patch
• Power Management
• Sleep, Shutdown, Restart
• Audio Speaker & Earphone
• Trackpad, Trackball, Gestures
• Battery Indicator

• iMessage and Facetime I think because of the itlwm has still some glitch, they are still developing this kext
• Camera I cannot tell, I dont have a webcam or its malfunctioning ever since I bought this 2nd hand
• Don't expect a smooth usage of Sonoma on this x250, by paper it will run well on Monterey, while using OLCP will make your machine run Sonoma on it, patching it means it will bypass some of the macos codes/settings

• zamkara for the EFI that I used and modified to make it work on Sonoma, as well as the description code on this page

I made a comprehensive guide (at least on my opinion), Youtube: litemint09