Hey all So I'm an American but I live in the UK 9 months out of the year, and I have been happily using an unlocked iPhone 3G from AT&T (software 3.0) for the last few months until it completely ******* out on me last night and I had to restore. To specify, I use an O2 Pay & Go SIM. So the right iPhone provider here, just not for my particular phone. iTunes wouldn't let me restore back down to 3.0--obviously--but when I followed the instructions to jailbreak and unlock 3.1.2 with Pwnage Tool, I'm not getting any service at all. Ultrasn0w is installed, but I think the issue may have something to do with the activation/root partition--I really have no idea where I should set the root partition, or if I should activate at all since technically o2 is an iPhone supporter and I have NOT updated my carrier settings. Any help would be immensely appreciated...I'm somewhat computer-illiterate outside of music production. But I guess my main question is 1) Should I check "Activate"? 2) If so, where should I set the root partition? and 3) If I'm SoL, is there any way at all of downgrading back to the basic 3.0 software? It worked dandily. Thanks again!