OpenCore-EFI-Laptop-Lenovo-Yoga-C740-14IML
Stable and self-use OpenCore EFI files for Lenovo Yoga C740-14IML.
Details of the PC used in debugging
LaptopLenovo YOGA C740-14IMLMotherboardLenovo (Unknown)CPUIntel Core i5-10210URAMSK Hynix 8G*2 2667 MHzHard DiskWDC PC SN730 SDBPNTY-512G-1101 512G M.2 NVMe SSDGPUIntel Graphics UHD 630Sound CardRealtek ALC285 & Intel SSTEthernetRealtek USB GbE Family ControllerWLANIntel Wi-Fi 6 AX201 160MHzMonitorLenovo Display FHD
Problems still exist
Stuck on[ PCI configuration end, bridges 2, devices 20 ]Resolved after making the SSDTs in right order.
Stuck onapfs_module_start... Previous shutdown cause...Not problems of EFI, resolved after reflash the USB Installer.
Stuck onIOG flags ... Generation from SMC report as ... IOPPF ...Resolved after fixing SSDTs, adding some kernel extensions, etc.
- The touch screen
failed to driveis not stable during usingResolved after switching to SSDT-XOSI, adding patching of XOSI, patching VoodooI2CPCIController.cpp (thanks @MJYINMC), but touch screen
still doesn't workonly work after a sleeping. Sound Card failed to driveAppleALC.kext with layout-id 61 is OK.
Unable to enter macOS 11.0.1 Installer (Whether it is in-system upgrade or USB upgrade)It's able to update if you set DVMT pre-allocated by PATCHING BIOS (not set in OpenCore's config.plist). See here for the instructions and thanks @MJYINMC
- Built-in microphone failed to drive
- Wi-Fi cannot run at full speed
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Author: @Holierthanhe |
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