help with no signals

I have had my iphone unlocked with iphonesimfree... i was running 1.1.1 when i updated to 1.1.2, based on what IPSF said, that if i updated to 1.1.2 i shouldn't have any problem, my iphone is "unlocked" doesn't give me any errors or anything. But even if i went back down to 1.1.1 i can't get my phone to work. I tried the prep for 1.1.2, it installed says i am ready, i update to 1.1.2, i use the windows.bat file thing from the jailbreak software... but it keeps saying only usable when my iphone has been used with the oketop or whatever its called... whats going on? i have done this 3 times now and doesn't work, it says the same thing. I got fustrated and went back to 1.1.1 but it won't allow me to have a phone signal after i activate/jailbreak with carnival, help please~!

Try to replace the lockdown file with 1.0.2 lock down. Reboot then u should have it back...But after this usb shouldnt work so ssh into your phone and put lockdown 1.1.1 back on the phone, reboot and should be good to go