help to unlock 3gs 4.2.1 cant restore to 4.2.1 i have an iphone 3gs with 4.2.1 that i need to unlock using redsnow for jailbreak and ultrasnow for unlock and but everytime i try to restore with itunes it says error 3194 does it mean 4.2.1 not being signed anymore and i cant unlock my phone help plzzzz |