The new unlock method using SAM requires that you know the network on which your iPhone is coded. Of course, many do not know for sure which networks the iPhones are coded on, but this is where iDevice.ro comes in to help you find this out. In this forum post you can find out for free which network your iPhone is coded on and with the help of that information you can follow this tutorial which will teach you how to decode the device. Of course, SAM decoding is only good for one card, but at least you can use the device on the network you are on.
If you want to permanently decode your terminal, then you can do so in that post on the forum, but you will have to pay.
