[2.0] - I upgrade to fw 2.0, how do I downgrade or unlock it.
My boss have an iphone (1.1.1)version, jailbreaked and unlocked (by someone in Singapore, I'm also not so sure by which way of soft unlocked), several days before when he using Viaticus Volatus method (he purchased this via internet http://iphoneinfused.com/features.cfm )and they send him a link wihch descriped how to unlock 2.0 version, on the way do it, he failed, when I try this way, I also failed , first when connect with iTune, shows that " It seems that the sim car are not supported", then press home button and power button at same time, release power button in 10 seconds, then hold Option with click Restore, it shows Restore, then when restoring, failed to restore. When extracting files at last, shows ERROR 1600).
Also when I'm using Pwnage Tool to downgrade also failed.....
Now the situation is the phone only appears iTune logo and white USB cable, with slide for Emergency with Multilanguage, English, French, Deutch, Traditional Chinese etc....with dial panel, and with a Signapore mobile phone sim card inside , but no service appears, and with Locked logo .
Anybody can help me how to do?? thank you so much! shall I need to downgrade to 1.1.1? Also not sure if it work when downgrading,,,,thanks a lots!!!!:(:(:confused: