thanks for the answer... I don't have energy costs because I have a solar system... the firmware was like security more... for example if a fan fails the firmware has settings that no longer turn on or restart and notify by telegram or email once that s9j will be in my warehouse and not in my house... that is, I have more security settings and others than antminer's firware.  I had the idea that hiveon was very good, everyone speaks well .. but I've seen that it's not quite right...