![]() ![]() We advise users either install an older OS(ie. With macOS 11.3 and newer, XhciPortLimit is broken resulting in boot loops (opens new window).XhciPortLimit broken in macOS 11.3 Beta 2 and newer.To resolve, add Catalina's patched AppleAHCIPort.kext (opens new window) with the MinKernel set to 20.0.0.Due to Apple dropping the AppleIntelPchSeriesAHCI class in AppleAHCIPort.kext.More information from the repo (opens new window) Setting MaxKernel to 19.9.9 for AirPortBrcm4360_Injector.kext may help.BCM94352Z users for example may need brcmfx-driver=2 in boot-args to resolve this, other chipsets will need other variables.Forcing a specific driver to load with brcmfx-driver= may help.Mainly user-space patching has severely broke, meaning certain functionality may have broken.Getting started with ACPI: Prebuilt SSDTs (opens new window).Big Sur has added new requirements for ACPI, so you'll need to grab some new SSDTs:įor those who'd like precompiled files, see here: Reminder for AMD Users: Don't forget to update your kernel patches with those provided by AMD OS X, otherwise you'll be unable to boot Big Sur:įor X79, X99 and X299 users, pay close attention to the below. ![]()
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