Rostock Max V2 Calibration Problems

[Mustang]

I just assembled my Rostock Max v2 and the LCD screen on it does not have the same calibration options as in the video. I finally seemed to figure it out but I still cant figure out how to get it to home. When I press home sometimes it will go down some sometimes it will go up and keep going up until I shut it off. I thought maybe the limit switches were bad but when I use the M119 test they all change from L to H. Any help would be greatly appreciated.