If you got the balckscreen, or the loading screen with the spinner, or unexpected reboot, like me, try this:
- Start in Single User Mode
- Mount the root foolder (/sbin/mount -uw /)
- Delete caches
- - rm -Rf /System/Library/Caches/*
- - rm -Rf /Library/Caches/*
- Delete NVIDIA Web Drivers
- - rm -Rf /System/Library/Extensions/*Web.bundle
- - rm -Rf /Library/Extensions/*Web.kext
- Reboot, at this time, use the param nv_disable=1
- Install the WebDrivers, ignore error.
- Reboot