Honestly I don ' t believe it ' s a problem with the bootloader likely it ' s an issue with the flags that have been set or not set . With Sierra , you can ' t enable the Web Drivers using nvdadrv 1 anymore . There ' s a new spot in the config . plist SystemParameters keySystemParameterskey dict keyInjectKextskey stringYESstring keyInjectSystemIDkey true keyNvidiaWebkey true dictIf you don ' t have the NvidiaWeb key you ' ll want to add it and ensure it ' s set to true . Obviously this all only works if you have the NVIDIA Web Drivers installed if you don ' t , start there . Hopefully that helps ! CorpNewt <| sep |> And Canada and Britbongistan <| sep |> It ' s the best time to pick it up . <| sep |> Thanks , it was a throw away joke referencing the it gets better project to keep gay youths from committing suicide .