reading from the thread "Unlock Samsung t-509", specifically the procedures provided by 'esimpson', I have unlocked my SGH-S307... > 2. Put a SIM card that is from a network other than the one your >phone is locked to > 3. When Incorrect SIM error comes up, type *#9998*3323#. > 4. White screen will appear with an exit option. Press the right >softkey. > 5. From the menu that appears, select the Malloc Fail option. This >will reboot the phone and the normal service screens will appear. That's all the steps I did and it worked!
Hello, Thank you for help people to unlock SGH S307 I followed your instructions, but I was not able to connect. 1st- When I insert a different Sim card, it does not give me the massage “Incorrect SIM” the screen just shows “no service” 2nd- After I follow the instruction step by step still says no service What am I suppose to do With best regards, Paul
