I just purchased a used iphone 3g from a family member so that I could unlock and use on T-Mobile's system. Who knew it would be so difficult? The phone had been uodated to 4.2.1 BB05.14.04 and after reading over a dozen "simple" instructions and various downloads Im still no closer to unlocking the phone as when I first purchased it. Is there any particular online company that can do this for me? Or a simple instruction/diagram that will help me in this process. I am not tech savy at all. Any help that can be provided will be GREATLY appreciated.