Tested on 20KS003AXS model with macOS Big Sur (11.1)
IMPORTANT
This repo migrated to OpenCore bootloader. You still can find the last Clover files in 'EFI-Clover' folder. Be aware that Big Sur+OpenCore combination may require some/significant time for initial setup. I experienced number of annoying issues that lead to few re-installs and admin permissions recovery. Also make sure to replace PlatformInfo parameters with your own unique values:
Generic -> MLB
Generic -> ROM
Generic -> SystemSerialNumber
Generic -> SystemUUID
BIOS Settings
- BIOS version 1.34
- Controller should be set to AHCI
- Disabled options: Secure Boot; CSM Support; Internal Storage Tamper Detection
- To prevent instant wake also disable: Wake On Lan; Network Stack; Always On USB
- Enable F1-F12 as Primary Function + install Karabiner-Elements to emulate FN keys behavior
Not Supported Hardware
- Following stock NVMe SSDs reported as not supported: Samsung PM981
- Discrete graphics card (ATI Radeon RX 550)
- Line/Mic Input (3,5")
- Card reader
- Fingerprint sensor
- Trackpad supports up to 3-finger gestures. Cannot rotate, pinch, etc
Wi-Fi Adapter
While it is possible to make the stock Wi-Fi card (Intel AC3165) work now, it is still adviced to replace it with a better card that is supported. I've replaced mine with Broadcom BCM94352Z, so this repo contains kexts for it.
Known Issues
- Lid close and FN keys stop working after sleep also battery status is stuck. Fixed after reboot.
- External monitor connected to HDMI need to be re-plugged after sleep
- Not possible to boot Windows via OC (still possible via BIOS boot selection)
Possible fixes
- Some users reported that they failed to boot. That can possibly be fixed by adding npci=0x3000 to bootflags.
- If you want to try make Intel AC3165 WiFi work, check following repos: https://github.com/OpenIntelWireless/itlwm, https://github.com/AppleIntelWifi/adapter
- Working SSDs: Toshiba XG5 (stock), ADATA SX8200
Disable Hibernation
Run following commands:
sudo pmset -a hibernatemode 0
sudo rm /var/vm/sleepimage
sudo mkdir /var/vm/sleepimage
sudo pmset -a standby 0
sudo pmset -a autopoweroff 0
