download this file 1st for rooting http://www.mediafire.com/?vknlaxc2bb2shvr
1.Put AceGingerRoot.zip in your main directory in the SD card.
2.Turn off your phone.
3.Boot in Recovery by pressing POWER+HOME buttons. (not POWER+VOLUME UP+HOME buttons)
kung dimo makapa kung saan ang recovery mode niya gamit ka ADB
-download this adb file http://www.mediafire.com/?gci6j2d3v3vxam8
-extract and paste to c:\windows\system32
-connect phone and execute the file in start/run/adb reboot recovery
now phone sould be in recovery state
note: make sure that the USB debugging in phone is check
4.In Recovery select Install zip from sd
6.Reboot your phone and it's ready.There must be a Superuser icon in your Apps menu