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Here is my working EFI OC097 for Latitude 5490 (i5-8350U, Intel Wifi), for Sonoma. Due to file uploading size limitation, AirportItlwm.kext (V1.23 Alpha for Sonoma) is not included. Both HDMI port and Display Port via USB-C port are working. You may give it a try. This EFI was based on this GitHub repository: juanpy0223/Dell-Latitude-5490-8th-gen. My bios is still 1.26 and did not update to the latest (V1.32) since the latest BIOS may prevent the CFG LOCK changing. Also once updated, it can not go back to earlier BIOS. I experienced this with my Latitude 5400. If you are able to disable CFG LOCK with 1.32 BIOS and set DVMT to 64MB (instruction is in the link above), then you can make the following changes to the Config.plist: - Root->Kernel->AppleCpuPmCfgLock = FALSE (for native CPU power management) - Remove the following two properties from your iGPU's DeviceProperties (PciRoot(0x0)/Pci(0x2,0x0) for my case): framebuffer-fbmem framebuffer-stolenmem Goodluck! DELL-5490-OC097.zip

OPENCORE - Sonoma Supports Sonoma Follow BIOS Configuration above Working: full graphics acceleration on Intel HD520 iGPU, including brightness control (F5 and F6) multi-display with DisplayPort (Video & Audio) audio, microphone input and headset output (F8 and F9) Mute button IS working by Human7900 GigEthernet LAN connection wireless and bluetooth with any compatible card (a DW1560 in my case, no Whitelisting) left and right USB ports including USB Type-C integrated webcam CPU power management sleep (Lid, Energy Saver settings, Apple menu, PWR button) & wake (Lid, PWR button) battery management keyboard and touchpad keyboard backlight (Fn + F3) touchpad with gestures, mouse buttons (can be disable with PrtScr key) RTS522a microSD card reader Not working: Trackpoint and mouse buttons Finger Print reader Wifi button Installation: Download macOS Sonoma app Format a 16GB USB drive (GUID / Extended (Journaled)) Create USB Installer with createinstallmedia command Download attached folder and rename as EFI Mount EFI partition and add EFI folder Configure BIOS setting according to guide Boot with USB installer Complete installation Post Installation: Mount EFI partition of newly installed drive and copy EFI folder over Update / Change in Config.plist under PlatformID->Generic (use genSMBIOS or Hackintool.app) MLB, ROM, SystemSerialNumber and SystemUUID Resources: https://dortania.github.io/OpenCore-Install-Guide/ https://github.com/VoodooSMBus/VoodooRMI https://github.com/OpenIntelWireless/itlwm https://github.com/cholonam/Sinetek-rtsx https://github.com/0xFireWolf/RealtekCardReader/releases Updated to OC 0.9.5 Note: Config is set for Broadcom DW1830 If you have Intel, rename Config-IntelWifi to Config.plist (not tested) SMBIOS, ig-platform-id, device-id, USBPorts kext set to MacBookAir8,1 to support Sonoma Since Sonoma has dropped all/most of the Broadcom wireless we've been using, you'll need to patch the system using OpenCore Legacy Patcher.app (currently using 1.1.0) For Broadcom wireless system only, see here for patching Multiboot from OC picker is also working! HP840G3_OC_0.9.5-Sonoma.zip

OPENCORE - Ventura Supports Ventura Follow BIOS Configuration above Working: full graphics acceleration on Intel HD520 iGPU, including brightness control (F5 and F6) multi-display with DisplayPort (Video & Audio) audio, microphone input and headset output (F8 and F9) Mute button IS working by Human7900 GigEthernet LAN connection wireless and bluetooth with any compatible card (a DW1560 in my case, no Whitelisting) left and right USB ports including USB Type-C integrated webcam CPU power management sleep (Lid, Energy Saver settings, Apple menu, PWR button) & wake (Lid, PWR button) battery management keyboard and touchpad keyboard backlight (Fn + F3) touchpad with gestures, mouse buttons (can be disable with PrtScr key) RTS522a microSD card reader Not working: Trackpoint and mouse buttons Finger Print reader Wifi button Installation: Download macOS Ventura app Format a 16GB USB drive (GUID / Extended (Journaled)) Create USB Installer with createinstallmedia command Download attached folder and rename as EFI Mount EFI partition and add EFI folder Configure BIOS setting according to guide Boot with USB installer Complete installation Post Installation: Mount EFI partition of newly installed drive and copy EFI folder over Update / Change in Config.plist under PlatformID->Generic (use genSMBIOS or Hackintool.app) MLB, ROM, SystemSerialNumber and SystemUUID Resources: https://dortania.github.io/OpenCore-Install-Guide/ https://github.com/VoodooSMBus/VoodooRMI https://github.com/OpenIntelWireless/itlwm https://github.com/cholonam/Sinetek-rtsx https://github.com/0xFireWolf/RealtekCardReader/releases Updated to OC 0.9.5 Note: Config is set for Broadcom DW1830 If you have Intel, rename Config-IntelWifi to Config.plist Multiboot from OC picker is also working! HP840G3_OC_0.9.5.zip HP840G3_OC_0.8.5_Ventura.zip