iPhone hacktivation problem w/ redsn0w
Hi guys, my wife has an iPhone that I am playing around with, which I hope I have not broken.
The phone's earlier version was 2.2.1, which I updated to what I believe is 3.0.1. After the supposed update, the phone needed to be reactivated (?) and since I don't have an AT&T SIM registered against this phone, I tried hacktivating it.
After scouring the internet on the best way to do it, I found that redsn0w would give me what I am looking for but everytime I restore the iPhone and then try using redsn0w, I get the following error: unable to recognize specified IPSW.
What am I doing wrong here?
I'll admit that I am a noob when it comes to the iPhone but I've looked everywhere for an answer before posting here and haven't been successful.