my 3GS was jailbroken/unlocked just fine running on 3.0. just to have the latest firmware, i decided to upgrade to 3.1.2 using the dev team's latest release from earlier this week. went through the process fine as always, however no carrier. i'm unlocked, but i use ATT on contract. so i went through the process again. same thing. GD. even tried blackrain thinking maybe that'd fix it. nope. looks like i'll have to do a factory restore and loose my unlock feature. hopefully the dev team will release an update in the future before i travel outside of the country. i have the dfu or whatever information they told you to get before jailbreaking when the 3GS was first released, but i dont know if that'll do anything. any help? i've been jailbreaking since you first could so i'm not new to it. first problem i've run into like this.