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[Solved] Latitude E6220 don't work after last update


okaenrique
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You need to install NullCPUPowerManagement.kext to /Extra/Extensions.

 

If you're following my guide and used my bootpack, it saids to rename NullCPUPowermanagement to .kext before any update to prevent KP.

After update, install the kexts in /Extra/Extensions/SLE (contains the patched AppleIntelCPUPowermanagement) with kextwizard. Then rename NullCPU to .bak until your next update.

 

Try booting with your USB Installer, launch the terminal and rename the file.

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Is your installed drive name "Macintosh SSD"?

and your installer is "OS X Base System"?

 

Run this if it is. Assuming you do have NullCPUPowerManagement.kext.bak there. 

 

mv /Volumes/"Macintosh SSD"/Extra/Extensions/NullCPUPowerManagement.kext.bak /Volumes/"Macintosh SSD"/Extra/Extensions/NullCPUPowerManagement.kext

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