Hi All,
  This is on the 3g iphone. I am now stuck at the insert Sim card to activate Iphone error. Even I had try to restore the firmware and seem that the cydia cannot be install into the device. It happen after I update the firmware from 3.0 to 3.2.1. (Window mode using the iPhone1,2_3.1.2_7D11_Restore.ipsw). I had tried:-

    a) Restore to firmware 3.0 with iTune(v8 and v9). Fail to do, half way the restore process, prompt me an error.
    b) Restore to firmware 3.0 with Redsn0W v0.8, complate but did not install cydia(not seeing the pineapple screen). reboot and get back to the same error(insert Sim to activate)
    c) jailbreak with the blackra1n and complete all the process(no error) but still go back to insert valid sim card to activate Iphone screen.

 

What can I do next and what went wrong on the process? Please help..............
thanks