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5T33Z0 authored Sep 30, 2023
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# Lenovo ThinkPad T490 Hackintosh OpenCore
[![OpenCore](https://img.shields.io/badge/OpenCore-0.9.4-blue.svg)](https://github.com/acidanthera/OpenCorePkg/releases/latest) [![macOS Monterey](https://img.shields.io/badge/macOS-12.6.7-white.svg)](https://www.apple.com/newsroom/2021/10/macos-monterey-is-now-available/) [![macOS Ventura](https://img.shields.io/badge/macOS-13.5b-white.svg)](https://www.apple.com/macos/ventura/) [![macOS Sonoma](https://img.shields.io/badge/macOS-14.0b-white.svg)](https://www.apple.com/macos/sonoma-preview/)<br>
[![OpenCore](https://img.shields.io/badge/OpenCore-0.9.5-blue.svg)](https://github.com/acidanthera/OpenCorePkg/releases/latest) [![macOS Monterey](https://img.shields.io/badge/macOS-12.7-white.svg)](https://www.apple.com/newsroom/2021/10/macos-monterey-is-now-available/) [![macOS Ventura](https://img.shields.io/badge/macOS-13.6-white.svg)](https://www.apple.com/macos/ventura/) [![macOS Sonoma](https://img.shields.io/badge/macOS-14.1-white.svg)](https://www.apple.com/macos/sonoma-preview/)<br>
![10053604](https://github.com/5T33Z0/Thinkpad-T490-Hackintosh-OpenCore/assets/76865553/ed932a1a-8205-4b81-a4e2-f68d7d8a7178)

**TABLE of CONTENTS**
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│   ├── OpenRuntime.efi
│   └── ResetNvramEntry.efi
├── Kexts (loaded based on Min Kernel/Max Kernel settings)
│   ├── AdvancedMap.kext
│   ├── AirportItlwm_Monterey.kext
│   ├── AirportItlwm_Sonoma.kext
│   ├── AirportItlwm_Ventura.kext
│   ├── AppleALC.kext
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│   ├── NVMeFix.kext
│   ├── RealtekCardReader.kext
│   ├── RealtekCardReaderFriend.kext
│   ├── RestrictEvents.kext
│   ├── SMCBatteryManager.kext
│   ├── USBMap_MBP152.kext
│   ├── VirtualSMC.kext
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### Config Adjustments
- Download the [**latest Release**](https://github.com/5T33Z0/Thinkpad-T490-Hackintosh-OpenCore/releases/latest) of my EFI folder and unzip it
- Open the config.plist with the plist editor of your choice (ProperTree or OCAT for example)
- `Kexts/Add` Section: decide, which Wifi kext you want to use (&rarr; see [**AirportItlwm vs itlwm**](#airportitlwmkext-vs-itlwmkext))
- Go to `PlatformInfo/Generic` and generate MLB, Serial and ROM for `MacBookPro15,2` with GenSMBIOS or OCAT. :warning: Don't change the SMBIOS or the `USBMap.kext` won't work anymore!
- Add `boot-args` for debugging if you have installation issues: `-v`, `debug=0x100` and `keepsyms=1`
- `UEFI/APFS`: change `MinVersion` and `MinDate` to `-1` for macOS Catalina and older.
- Save your config.plist
- Open the config.plist with the plist editor of your choice (ProperTree or OCAT for example) and adjust the following settings based on the used version of macOS and personal preferences:
- `Devices/Properties/Add/PciRoot(0x0)/Pci(0x2,0x0)`: When running macOS 13.3 or older, disable/delete `enable-backlight-registers-alternative-fix` and use `enable-backlight-registers-fix` instead to fix backlight issues.
- `Kexts/Add` Section: decide, which Wi-Fi kext you want to use (&rarr; see [**AirportItlwm vs itlwm**](#airportitlwmkext-vs-itlwmkext))
- Go to `PlatformInfo/Generic` and generate MLB, Serial and ROM for `MacBookPro15,2` with GenSMBIOS or OCAT. :warning: Don't change the SMBIOS or the `USBMap.kext` won't work anymore!
- Add `boot-args` for debugging if you have installation issues: `-v`, `debug=0x100` and `keepsyms=1`
- `UEFI/APFS`: change `MinVersion` and `MinDate` to `-1` for macOS Catalina and older.
- Save the changes

> **Note**: If your T490 model uses a different WiFi/BT card than Intel AC-9560, then use the official itlwm.kext because mine only contains the firmware for the 9560 so it won't work with other cards.
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