Samsung SM-J110F Root File 100% Tested

i post for new user mostly 

 where everything described clearly

 1.need root must

 to root this phone 
 first install twrp recovery on phone 

 by odin v3.10
 then copy the super su to internal memory of phone
 then go to recovery
 then install from sd card
 then select super su file 
 power on phone
 open kingo root to check root status 
 root success
 this time must trick allow button in phone when prompt a window

 2.unlocking by octopus 

 read info

 unlock done