How to root Samsung Galaxy S4 GT-i9505 Lollipop 5.0.1 (I9505XXUHPK2 (this part is very important because I can't find correct files for this firmware and older ones result in bunch of minor
Come ottenere i permessi di root su Galaxy S4, la guida completa
How to Root the Samsung Galaxy S4 I9505 (Works /w Lollipop - Safe & No Loss of Data) - YouTube