How to unlock i9100 very easy steps for z3x user

How to unlock i9100

-No patch and No other files requires.
-install latest version Z3X.SamsungTool_12.1.exe
-power on phone-go to MENU==>SETTING==>APPLICATIONS==>
DEVELOPMENT
check USB DEBUGGING (Enable)-install: SamsungDriversPack_1.0.exe-connect phone using USB then wait till driver is installed Then:
put UNLOCK(root)
select port
then click Unlock then wait..for some time. ROOTING the phone.
Count supported models - 300
Starting ADB Server... OK
Checking ROOT... FALSE
Reading Phone Info... OK

Android Version: 2.3.3

Model: GT-I9100
Product Code: GT-I9100RWAO2U
Phone Version: I9100XXKE7
PDA Version: I9100XWKF3
CSC Version: I9100O2UKG2
IMEI: 359090049817958
Rooting Phones... OK
Reading Data From Phone... OK
Writing NV Data To Phone... OK
Calculating md5... OK
Writing md5 To Phone... OK
Rebooting... OK
Done with Samsung Tool ver 12.1
Then: Unlock DONE

 hope this save some time for z3x users