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HP Probook 450 G1- Installation guid

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how could i know if there's changes occurred in native api

If you changed hardware, updated BIOS, or changed any BIOS options, it has potentially changed.

If in doubt, re-extract with F4.
 
okey here is my last query
whenever i do press F4 on clover screen then i should delete /System/Library/Extentions/BrcmPatchRAM.kext,is that it?
 
okey here is my last query
whenever i do press F4 on clover screen then i should delete /System/Library/Extentions/BrcmPatchRAM.kext,is that it?

If you have an old BrcmPatchRAM.kext in /S/L/E, you should delete it because it doesn't work on 10.11.

The new version of BrcmPatchRAM.kext simply refuses to load in 10.11.

PBI-CE will install the new BrcmPatchRAM2.kext+BrcmFirmwareRepo.kext when you run it after you do the update.
 
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