ROOT the phone using SRSROOT
Procedure:
- connect micro usb to phone.. (turn on usb debugging)
- open Octopus Samsung tool
- select phone model I9300
- click REPAIR IMEI/SN
- type the original imei on the back of battery
- click IMEI A fix
- wait until pop up will show
- just follow the instructions..
done... eto na finish product...