Samsung Galaxy Ace S5830 Unlock by Z3X

procedure....
1.open Z3X SHELL
2.choose phone model S5830
3.type this first
Enter code *#7284# - choise phone usb.
Enter code *#9090# - choise usb diag. (or *#197328640# -> 9 -> 4 -> usb diag ) then reboot phone
Connect cable. Setup drivers
Select Diagnostic port in port settings
5.check unlock and read full nvm
6. tick SP UNLOCK


sample pics here