Just bought mine. Pindah from sony xperia line. Btw the keypad have no predictive text? Means it predict what i wanna type without replacing it.

I am a new Nova Launcher user too; the Home Manager can be removed from notification by unselecting it in settings. The confusion is that it appears in notification when the check box is unselected after installing it. So what you do is just check it. Exit and then uncheck it again. Voila - Home Manager does not appear in notifications anymore.