I have a 3GS, jailbroken with my ECIDs on file via Cydia. I want to restore because for whatever reason, last night my phone decided to not want to open the camera app/photos app and it has been going on all without any solution but to do a restore. As a result of Apple's verification process, what do I need to do inorder for me to rejailbreak to 3.0 (or well 3.0.1) too I guess? I don't want to go to 3.1 as I want to remain jailbroken and want to have the ability to unlock. Do I need to simply change that hosts file in the etc folder so that the phone will verify my ECID from the Cydia server? I;m just afraid iTunes won't let me restore to anything but 3.1 and I don't want to update my baseband. Thanks for any help!