first root muna odin dito nyo kunin file at flasher http://androidxda.com/root-samsung-galaxy-grand-prime-sm-g530h
Type *#0808# and select 'DM+MODEM+ADB'.
restart
open z3x di pa naka activate
Done with Samsung Tool v.20.5 :-*
Type *#0808# and select 'DM+MODEM+ADB'.
restart
open z3x di pa naka activate
Done with Samsung Tool v.20.5 :-*