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This repo contains information for getting macOS 11 Big Sur working on a Lenovo T490 laptop.
The compatibility is very good for the most part, and it behaves as a real MacBook Pro, including camera, audio, trackpad, iCloud services. In general, the experience is pleasant, as the laptop is smooth and responsive under macOS. Battery life is acceptable (around 6h with the brightness set to half). The Intel WiFi card is soldered onto the motherboard, which means it can’t be replaced with a Broadcom one, but the Intel card is now functional – I am getting 150/20 mbit up/down on a 200/20 connection. With the latest AirportItlwm kext even Handoff and continuity features are working, except for AirDrop.
Currently running:
| Component | Version |
|---|---|
| macOS version | 11.2 (20D64) |
| OpenCore | 0.6.5 |
| BIOS version | 1.71 |
| EC version | 1.23 |
| Component | Model |
|---|---|
| CPU | Intel i5-8265U/i7-8565U Whiskey Lake |
| Memory | 16GB/32GB 2400Mhz |
| Storage | WDC PC SN720 512GB |
| Display | 14″ non-touch 1920×1080 |
| GPU | Intel UHD 620 |
| Camera | 720p with Windows Hello IR sensor |
| WLAN | Intel Wireless-AC 9560 2x2ac with BT5.0 |
| Battery | Single 3-cell 50Wh |
| Touchpad | Synaptics TM3471-010 |
Note on NVME storage: Samsung PM981 drives will not work out of the box if at all, consider replacing the drive if you have one (issue)
| Kext | Version | Remark |
|---|---|---|
| AirportItlwm | 1.3.0 alpha | WiFi kext |
| AppleALC | 1.5.7 | Fixes onboard audio |
| BrightnessKeys | 1.0.1 | Fix brightness keys |
| CPUFriend | 1.2.3 | Power management |
| CPUFriendDataProvider | – | Frequency vector for CPUFriend |
| IntelBluetoothFirmware | 1.1.2 | Fixes bluetooth |
| IntelBluetoothInjector | 1.1.2 | Companion for IntelBluetoothFirmware |
| IntelMausiEthernet | 2.5.1d1 | Fixes ethernet |
| Lilu | 1.5.1 | Kext patcher |
| NoTouchID | 1.0.4 | Disable TouchID |
| NVMEFix | 1.0.5 | Fix for NVME SSDs |
| SMCBatteryManager | 1.2.0 | Battery indicator |
| SMCLightSensor | 1.2.0 | Ambient light sensor |
| SMCProcessor | 1.2.0 | CPU temp monitoring |
| SMCSuperIO | 1.2.0 | Monitor fan speed, not working |
| USBInjectAll | 0.7.5 | Inject all USB, only for troubleshooting |
| USBMap | – | Inject only mapped USB |
| VirtualSMC | 1.2.0 | SMC chip emulation |
| VoodooRMI | 1.3.1 | Trackpad driver |
| VoodooSMBUS | 3.0 dev | SMBUS driver |
| VoodooPS2Controller | 2.2.1 | Enable keyboard |
| WhateverGreen | 1.4.7 | Graphics |
| YogaSMC | 1.4.2 | ACPI driver |
| Patch | Remark |
|---|---|
| SSDT-ALS0 | Fix display auto brightness |
| SSDT-AWAC | Fix AWAC |
| SSDT-BAT | Fix battery indicator |
| SSDT-EXT1-FixShutdown | Fix shutdown on reboot |
| SSDT-EXT3-LedReset-TP | Fix LED not working after wake |
| SSDT-EXT4-WakeScreen | Fix screen not waking |
| SSDT-GPRW | Fix immediate wake after sleep |
| SSDT-HPET | Fix irq conflicts |
| SSDT-PLUG | x86 plugin injection fix |
| SSDT-PNLF-CFL | Backlight fix |
| SSDT-PTSWAK | Fix sleep issues |
| SSDT-THINK | YogaSMC helper |
| SSDT-USBX | USBX patch |