EFI for ASUS K550VX (X550VX(K))

Hardware specs

Specifications	Details
Audio Codec	Realtek ALC255 (alcid=13)
Bluetooth - Stock	Realtek RTL8821AE BT4.0***
Bluetooth - Suggested	Broadcom BCM20702A0****
CPU	Intel Core i7-7700HQ
Chipset	Intel HM170/HM175
Ethernet	Realtek RTL8111 GbE Adapter
HDMI Audio	Intel CM238 HD Audio Controller
iGPU	Intel HD 630 (1536MB)
dGPU	nVidia GTX 950M 2GB*
Keyboard	Asus Standard Keyboard (PS/2)
RAM	4GB DDR4 2400MHz, up to 20GB (16+4)
SD Card Reader	Realtek RTL8411B PCIe Card Reader
Trackpad	FTC1010 (PS/2)**
WLAN - Stock	Realtek RTL8821AE 802.11ac***
WLAN - Suggested	Broadcom BCM94352HMB 802.11ac****

Notes:

• * dGPU is NOT supported on macOS due to the Optimus configuration, hence it's disabled by the -wegnoegpu boot flag. HDMI is wired through iGPU, though.
• ** The kext ApplePS2SmartTouchPad.kext actually covers all the Synaptics/Focaltech/etc. trackpads.
• *** Those are NOT supported on macOS, and they're replaced by the "suggested" counterpart.
• **** Proper patches/kexts are already added in this EFI. If you have a different card, remember to remove those!

Tested on

• macOS Big Sur (11.6 - 11.6.1)
• macOS Monterey (12.0.1 - 12.2.1)

What's working:

• Audio (Speakers + External devices)
• Battery percentage (Optimized charging too)
• Bluetooth*
• Boot through HDMI**
• Brightness (including brightness keys)
• Ethernet
• FN Keys (except F2 and F9 unless you use AsusSMCDaemon)
• HDMI plug-and-play
• HDMI audio
• iGPU (full QE/CI)
• Internal microphone
• Keyboard
• Sleep/Resume**
• Trackpad (with some gestures)
• USB (both 2.0 and 3.1 gen2)
• WIFI*

Notes:

• * refers to the BCM94352HMB card.
• ** After booting/resuming through HDMI, you'll experience a "glitch". Just open/close the lid and the issue disappears.

What's not working

• After sleep/resume, Bluetooth may become unavailable. That's a known Monterey bug, I can't do anything to address it. Meanwhile, you can just reboot to let it work again.

How to use it

• Download the latest version of OpenCore from here
• Place those files inside OC folder
• Remember to generate a new SMBIOS through GenSMBIOS and put it using ProperTree following this guide. Remember to put an AppleROM too! It's important in order to let macOS recognize properly the device.
• Put both OC and BOOT folders inside a new EFI folder
• Lastly put the EFI folder inside your USB/drive EFI partition and reboot!

Useful infos

• I've already added the latest HoRNDIS kext in order to use an Android phone (via USB tethering) for connecting to internet.
• If you can't type proper characters using your USB keyboard, try switching Key Rollover method (if any), from N-Key rollover to 6-Key rollover. Seems that macOS has some problems in recognizing correct characters while using N-Key rollover.
• The EFI does actually boot across all tested versions. Bluetooth with the mentioned card works too in all versions.
• AppleXcpmCfgLock is set to true for better compatibility across all BIOS versions. Though, after unlocking the MSR 0xE2 register (aka CFG Unlock), you can disable it for better performances.
• Virtualisation is enabled by default, you can keep VT-d on. VMWare works fine too!
• The kext ApplePS2SmartTouchPad.kext has been tuned properly to work with a natural scrolling method, plus some gestures has been enabled. You can tune it by yourself by editing the Info.plist file inside the kext itself.
• You can use Camera Controller in order to tune the integrated webcam (eg. increase brightness).

Credits

• @Dortania for the guide
• @HackintoshItalia colleagues for the various help.
• And all the other people that made this hackintosh life easier!