costy

Hi i bought a note 4 sm-910r4 although it was noted as sm-910f without being able to return it ,lucky me The bad part is just beginning ,the phone is locked ,worse than that it is aim from romania end this telephon aparentli dont hav gsm band I managed to root ,enabled hidden menu ,ai hav instaled GT idoneapps v3.1.8 ,but further than that I can not go to unlock Please help me ,thank you in advance !