I just finish to install macOS Sierra on a Dell Latitude E6420 with clover. The only two problem I still have is when my MacOS finish to open and is ready my sound level is at maximum (this make me jump on the chair if I not think before to put if down before play a song) if I can adjust it to a very low level for always at every boot it will me great. The sound level on top right of the bar not match with the level I adjust with the three keyboard button for sound. Another thing is when I adjust the brightness of the screen I have no brightness level indication in the center of the screen and I dont even had the icon on the top right.
Thanks in advance