It was on 2.0, I downgraded it to 1.1.4, and then unlocked it(ziphone), but now the Sim card is not detected. It's a friends phone and he said he tried using PWNAGE tool 2.0, but it still wouldn't detect it. I even tried my brothers sim card in it and it wouldn't worked. Also, the sim card works fine in his RAZR. Is anything wrong with the iPhone????