One does not have to be a Sherlock to see, that guy is coming from (downgrading) from 4.3 to 4.1.1
Well, unfortunately, there is NO going back from 4.3 as of yet. No way, Jose!! And he probably also has a "Knox warranty void:1" on his screen.
Same happened to me today. Tomorrow, I am going to "fight" with bootloaders, because THAT is what preventing me rebooting into recovery.