How to Unlock Cellular Phones for Free

1. Download Nokia Free Unlock Codes Calculator to the computer. Double-click on the downloaded file to install the program.
2. Double-click on the installed program. A window should pop up with several options. Choose the make of your phone from the list given. Choose the model number.
3. Press *#06# on your cell phone. Press 'OK'. A number should be displayed on screen. This is the serial number of your phone, also known as an IMEI number. Enter this number in the IMEI field in the Nokia Free Unlock Codes Calculator window.
4. Select your country from the list in the 'Country' field. Select the name of your cell phone network from the list given. Press 'CALCULATE'. A list of unlock codes should be displayed in the window.
5. Replace the SIM in the locked phone with the one that will not work. Turn on your phone. A message indicating 'Invalid SIM' should be displayed. Enter one of the unlock codes and press 'OK'. Your cell phone should be unlocked by now.