No single new feature ever comes to old motherboard BIOS. Just like in the smartphone market, most motherboards usually receive few BIOS updates within one year and that’s it. Jin Hardware by Marcel Dopita (updated 2424 days ago) Open your setup file with ifrextract and export as a. You'll find that this string is found within a Setup folder, right-click and export as Setup.bin (or even Setup.sct) If nothing pops up then your firmware doesn't support CFG Lock, otherwise continue on. Open your firmware with UEFITool and then find CFG Lock as a Unicode string.For Dell firmwares, please refer to dreamwhite's guide Other firmwares need a special procedure which we'll not directly cover into this guide. Please note that the only firmwares that can be directly opened by UEFITool are ASUS, MSI and ASRock. Now the fun part! Turning off CFG-Lock manually UEFITool (Make sure it's UEFITool and not UEFIExtract)Īnd the final part, grabbing your BIOS from the vendors' website.Inside your EFI/OC/Tools folder and ist, add the following tool(this can be done with ProperTree's snapshot function(ie.
In order to do this you'll need the following: So you've created the EFI folder but you can't still boot without unlocking before CFG Lock. This firmware has UNLOCKED MSR 0圎2 register!įor the former, please continue here: Disabling CFG Lock.įor the latter, you don't need to do any CFG-Lock patches and can simply disable Kernel -> Quirks -> AppleCpuPmCfgLock and Kernel -> Quirks -> AppleXcpmCfgLock. Within this file, search for OCCPU: EIST CFG Lock: This should provide you with a file in the format of opencore-YYYY-MM-DD-hhmmss.txt on the root of the drive. Use a tool called ControlMsrE2 which will speed up the whole checking processįor users who prefer using DEBUG release, you'll want to enable the DEBUG variant of OpenCore with Target set to 67 and boot OpenCore.Use the DEBUG version of OpenCore and check what the log says about CFG Lock.To check it, you can proceed into two ways: Note: Penyrn based machines actually don't need to worry about unlocking this register Checking if your firmware supports CFG Lock unlockingīefore proceeding with the rest of this guide, you'll first need to check if your firmware supports CFG Lock unlocking. Very much preferred, as avoids patching allowing for greater flexibility regarding stability and OS upgrades.
Msi z87 uefitool Patch#
Patch our firmware to support MSR E2 write
Instead both the Kernel (XNU) and AppleIntelPowerManagement want this register. And why we care about it is that macOS actually wants to write to this variable, and not just one part of macOS.
By default, most motherboards lock this variable with many even hiding the option outright in the GUI. AMD users don't have any type of CFG LockĬFG-Lock is a setting in your BIOS that allows for a specific register(in this case the MSR 0圎2) to be written to. Note that this guide is only applicable for Intel users.This guide is only recommended for users who have already installed macOS, for users who are installing for the first time enable AppleCpuPmCfgLock and AppleXcpmCfgLock under Kernel -> Quirks
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