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Hervé

Patched AppleRTC

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Last edited: 19 Aug 2019

 

For those who would still encounter issues with CMOS writes and subsequent BIOS resets or long BIOS POST at reboot, the attached pre-patched AppleRTC kexts should cure things.

 

As indicated at InsanelyMac and other places, the patch consists of the following binary modification of the kext binary file:

Find: 75 2E 0F B6
Replace by: EB 2E 0F B6

From Mavericks 10.9 to Mojave 10.14, AppleRTC shows a version v2.0. The patched kext can be used "as is" and, because version is up'ed to 92.0, will take precedence over the vanilla kext once placed in /S/L/E, in /L/E or injected through the bootloader from /E/E/ or E/C/k/10.x or E/C/k/Other folders.

 

 

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'bit of old news but as identified here by @Sherlocks back in March, the above AppleRTC patch is no longer applicable to Mojave from version10.14.4. The code has changed even if the kext's version remained set to v2.0. The new patch to be used from 10.14.4 is:

Find: 75 33 0F B7
Replace by: EB 33 0F B7

This was included to Clover's AppleRTC patch from version r4911.

 

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