After releasing a successful method to Root Your Samsung Galaxy S2, Chainfire has released a new app that automatically unlock your SIM which allows you to use your Galaxy S2 with any network you choose. This combo (root guide and SIM unlock) gives you complete freedom of your new smartphone, but as usual do this at your own risk! We are not held responsible for any mishaps and this could possibly void your warranty.
Before attempting to use this app, it requires you to be rooted/superuser (Root Your Samsung Galaxy S2). Follow further instructions on the download link below.
The app is called ‘Galaxy S2 SIM Unlockâ€™, download and install the app, after that you are now one click away from total control. The unlock codes are stored on the Galaxy S2, just like the former Galaxy S. Caution: Do not run the app twice from Android market, this may result in a freeze and would cause you not to be able to unlock your Galaxy S2. Just be patient and let the app work its magic!