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E6420 nVidia: trouble installing Sierra


lightro

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make sure to follow steps 

7. Copy kexts from /EFI/Clover/Kexts/Other/LE to /Library/Extensions of Macintosh SSD

    Note: Ignore warning/error messages and click OK, then run commands below.

 

8. Repair permission and rebuild cache. Run command from terminal

 

      sudo chmod -Rf 755 /L*/E*
      sudo chown -Rf 0:0 /L*/E*
      sudo touch -f /L*/E*
      sudo chmod -Rf 755 /S*/L*/E*
      sudo chown -Rf 0:0 /S*/L*/E*
      sudo touch -f /S*/L*/E*
      sudo kextcache -Boot -U /
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Many, many thanks for your help,

I have only one last question.

I need to enable OSX Sierra to activate NVidia Optimus.

However, this prevents me from connecting an external monitor via the docking station. Is there already a solution?

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