wondering if i could get some help here. I downgraded my 3Gs from 3.1.3 to 3.1.2 as I had my SHSHs on file with Cydia. I went through the process (2 restores) after 1005 error, then jailbroke with Blackra1n. I am all set, with one issue, my phone will not activate wth AT&T. ANyone have any ideas on this???