Do you have an original carriers sim or your phone is activated or previously jailbreaked?

Click YES if the following apply:

You will jailbreak/unlock your 3GS/3G device on firmware 3.1.3 or lower

You can unlock/jailbreak your 3GS on 4.0 - Mac only method - with baseband 5.13.04 and all lower supported

Windows/Mac supported

2G unlockable on 3.1.3




CLICK NO if the following apply:

You will unlock/jailbreak your 3G device on 4.0 or 3.1.3 firmware. 

You will jailbreak/unlock your 2G device on 3.1.3 firmware.

5.13.04 and all lower baseband supported.

Mac/Windows supported for 3G and 2G





 


If your device is not activated, you are only able to see this screen

To activate your phone you need to know what carrier your phone is locked to. Afer you know your carrier you need to get any of that carriers sim and insert the simcard into the iPhone.