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macOS Catalina (10.15.1) on the Dell XPS 15 (9550)

This repo is no longer maintained, since I have switched from XPS to a real MacBook Pro.

This repository contains my own files on the installation and configuration of macOS Catalina (10.15.1) on the Dell XPS 15 (9550)

  • Thanks darkhandz for his High Sierrra guide and wmchris for his guide. Please read these two guides before you use my files.
  • Use MacBookPro13,3 SMBIOS, much thanks for @syscl.
    • Note that you need to modify AppleGraphicsDevicePolicy.kext to make external monitors work.
    • The model identifier is also correct now.
    • I hide my serial number as C02*****GTFN, you may generate it by your own.
  • Caps and Left-Ctrl is exchanged in VoodoooPS2, you can modify it if you don't like this keyboard layout.
  • OsxAptioFix2Drv-free2000.efi is used to fix the slide parameter in booting, you may try OsxAptioFix2Drv-64.efi or OsxAptioFix3Drv-64.efi instead for your laptop.


  • CLOVER: Clover EFI folder.
  • Kexts: Kexts which should be installed in S/L/E or L/E.

My laptop

Dell XPS 9550

  • i5-6300HQ/HM170
  • Nvidia GTX960M / HD530
  • 3840x2160 (QHD)
  • DDR4 2133 16G (8G x 2)
  • Dell Wireless 1830 (BCM43602 + BCM20703A1)
  • 512GB NVMe SSD (Samsung SM951)
  • BIOS Firmware 1.9.0



  • 98% of the system

Not working

  • TB3/type-C port hot-plug maybe work.
    • I find that my TB3-DP adapter can hot-plug and the 4K external monitor works fine. Need more test.
    • My Nexus 6P is broken so I can't test.
  • SD card reader (waiting for good news from this post)


To make external monitor works (if you use iMac17,1 SMBIOS), you should do following steps:

  1. Open /System/Library/Extensions/AppleGraphicsControl.kext/Contents/PlugIns/AppleGraphicsDevicePolicy.kext/Contents/Info.plist.

  2. Find the Borad-ID which used in your config.plist such as "Mac-B809C3757DA9BB8D" or "Mac-65CE76090165799A" or "Mac-DB15BD556843C820".

  3. Replace the attribute Config2 with none

  4. Execute commands sudo kextcache -system-prelinked-kernel and sudo kextcache -system-caches.

  5. Reboot and everything is done.