2. Mount the DMG and drag the folder onto the hard drive. DO NOT DRAG THE ICON WITH THE LOCK (the app). Once the file is finished copying continue.
3. Open the application with the lock. It should open a terminal window. Let it run for a few seconds and then it should show a screen like this:
4. Write down your unlock code
Download and extract the attached Generate Unlock Windows.zip.
Look for the line Network Control Key:YourCode
Save the code
Step 2. – Enter the code
Power down your phone
Put in a SIM card from another carrier
Power up your phone
When it boots up it will ask for the unlock code that you found above
NO SIM Method (Thanks RazvanG)
remove sim card
power on phone without sim
enter *7465625*638*# and relock the phone to another network other than the one u have u'r sim card (eg 22610)
power off phone
insert sim card back
power on and enter nck code extracted from .bak file
Using the Market App
Search for Galaxy S Sim Unlocker in the market. (It is $10 and people say it works)
HOW TO LOCK SAMSUNG GALAXY S - FOR WARRANTY PURPOSES ONLY (TESTED)
After you get the NCK code using the method above, enter: *7465625*638*#
There will be a pop-up box.
Complete the first field (MCC/MNC) with the network you want your phone locked to (eg. 226 10 where 226 = romania; 10 = orange etc.) and the second field (Control Key) with the NCK extracted from the .bak file.
Press OK and your phone should relock.