Well I just bought an iPhone 3GS from a guy on craigslist. The phone is currently stuck in the activation screen where it wants me to put a sim card in or else it won't go forward. I have a T-Mobile sim card that i was using in another phone and I have previously unlocked my iPhone 3G to use tmobile until that phone broke. My question is, is it possible to jailbreak and unlock the ipHone 3GS while it is in the activation state? I don't even know what ISPW to use because I don't know what firmware the phone is running.