Procedure:
1. Phone must be powered on.
2. Enable USB debugging on the phone.
3. Root the phone first using "Kingo Root".
4. Run "Super User" app on the phone to disable Knox Security.
3. Type on phone *#0808# and choose "MTP + ADB".
4. Connect the phone to PC, use micro-USB cable.
5. Press "Unlock" button.
6. All Done!!!
..::Samsung i9500 STC Saudi Lock Successfully Unlocked::..
1. Phone must be powered on.
2. Enable USB debugging on the phone.
3. Root the phone first using "Kingo Root".
4. Run "Super User" app on the phone to disable Knox Security.
3. Type on phone *#0808# and choose "MTP + ADB".
4. Connect the phone to PC, use micro-USB cable.
5. Press "Unlock" button.
6. All Done!!!
..::Samsung i9500 STC Saudi Lock Successfully Unlocked::..