If you got your Samsung Galaxy S II with a SIM lock, meaning that your carrier barred your phone from using any other company’s SIM card, then there is some great news for you! Now you can search unlock code for your sgs ii with the help of an application that is currently available in the android market. This App finder will find the SIM unlock code for your device, or the unfreeze code. It’ll take a few minutes to run, but you should end up with the code to SIM unlock your device. If the code doesn’t work, don’t keep trying it !. You may end up with a freeze. In that case, the program can also find the unfreeze code, but if the SIM unlock code is wrong in the first place, maybe so is the unfreeze code. This application only works on rooted phones.

Screen Shots:

Instructions:

    Download Unlock SGS II App from the market or find .apk file attached below.
    After Installing app, launch Unlock SGS II App.
    Tap on Find SIM unlock code button and wait for the app to search for it.
    Note down the unlock code anywhere you find it easy to note.
    Power off your device, insert some other carrier’s SIM card and reboot your device.
    You will notice your phone will ask you for an unlock code
    Write the code you previously noted down and wait for the SIM unlock.
    If the code doesn’t work, don’t keep trying it !. You may end up with a freeze

        Download Link For Mobiles
        Download .Apk File And Install Manually
        Download From The Android Market

Please understand that  repeating this procedure might end up your SGS II in a freeze state, and you might have to use the same app to find an Unfreeze code. If the SIM unlock code is wrong in the first place, maybe so is the unfreeze code. For more information and bug reports youc an contact the developer at his personal blog.