You may have to borrow a AT&T sim card from somebody to activate your iPhone, not sure how to go past the emergency screen using t-mobile card in it, since i don't have an iPhone4 only have 3gs with T-mobile
Exactly.
Especially after looking at the download file size and seeing ti redownloads the whole OS(I think). People should really know whats going on.
The whole point of 4.02 was to patch the jailbreak exploit