Hi, I followed your steps exactly up until #13 "13. Plug your phone into iTunes and shift+click restore to 1.1.4 AGAIN. This will write the correct 4.04.05 baseband to you phone." When I plug the iPhone into the iTunes, the iTunes is asking for a correct SIM card, AT&T that is. I'm a tMobile customer and I have tossed away the AT&T sim that came w/iPhone. Is there a way around it? Thank you!
I got it here:
iLiberty+ | George Zhu's BLOG