Only S2 ke*ys, that are in internet, are: mk*1 and pp*ua. You write this ke*ys in a smart card and then u can send in manual the updating of month. Now the month's ke*y are adjournment (ke*y are 5C 5D 5E) and then u see anythink.
P.S. For write a mk*1 and pp*ua you have to get a 57 and 5F ke*ys write in a card. This ke*y are called "gemelle" and with ucd*s302 u can sign a commands.
However you can find only mk*1 ke*y becose the month's ke*y are ,for the moment, top sigret for avoid the birth of files.