EFI for Thinkpad L490 - Opencore

Opencore 0.9.8

macOS Sonoma 14.2.1 (c)

Specs:

• CPU: Intel® Core™ i7-8565U Processor
• GPU: Intel UHD Graphics 620 @ 2048 MB
• Memory: 24 GB @ 2666 MHz
• Disk: 512 GB NVMe Intel SSD
• Screen Resolution: 1920 x 1080
• BIOS: 1.35 - 22 Jan 2024
• WiFi: Intel® Wireless-AC 9560
• Audio: ALC257
• SMBIOS: MacbookPro15,4

Works:

• Battery
• HDMI output up to 2 screens
• Audio
• FN Sound/Brightness shortcuts
• WiFi
• Bluetooth
• Trackpad
• SD Card Reader - Realtek RTS522A PCI Express Card Reader

Doesn't Work:

• Airdrop

Note:

• Recently fixed the USBs,
  • now all ports are working. Removed the XHC ACPI patch and patched using RHUB on Dortania guide - Fixin USB section
• ACPIs are copied from https://github.com/tylernguyen/x1c6-hackintosh
• ACPIs from SSDT-Time
• GeekBench 6 Score - Ventura
• GeekBench 6 Score - Sonoma
• OCLP WiFi Fix due to Sonoma Broadcom Changes
• CFG Lock, seems locked but Kernel->Quirks CFG locks are disabled and it works
  • 0x3E - Write Protected CFG Lock - CpuSetup
• DVMT
  • 0xEE, DVMT Pre-Allocated
    • Set to 64MB
  • 0xEF, DVMT Total Gfx Mem
    • Set to 256MB