I tried downgrading my iPhone with the iJailbreak method, and as soon as I'm on the 1.1.1 homepage, it says invalid SIM, did not show "AT&T" and showed zero bars.. Despite the warning, I continued to 1.1.3 using iJailbreak. Once I got to 1.1.3, it still said invalid SIM, didn't show "AT&T" and showed zero bars. Tried again... still no luck. What am I doing wrong?
P.S. Once I restored back to 1.1.3, all was well, but I still need it Jailbroken!
P.S. Once I restored back to 1.1.3, all was well, but I still need it Jailbroken!