Sim Unlock Samsung Galaxy SL Latona I9003 in easy steps
1 You need to have ADB and The correct drivers installed,
2 download this zip and extract it : unlock_i9003
3 On your phone go to Settings>> Applications >> Development >> (Make shure that usb Debugging is ticked)
4 connect the phone
5 Double click unlock.bat and wait for the phone to reboot
6 You’re done