iOS 4.0.1 upgrade help. 3GS
Hey new guy here trying to upgrade...
Anyway, I just bought a second hand 3GS 16gb, it is unlocked and jailbroken, firmware 3.1.2.
I want to upgrade to iOS4 and this phone has in cydia SHSHs on file for iphone is 3.1, 3.1.2, 3.1.3, 4.0, 4.0.1.
I've been reading a lot regarding to upgrade to 4.0.1 (because I need Unlocked and JB). BUT I don't have a mac and don't have an original ATT sim card ( the phone came in a box with a ATT sticker) nor do I have a phonebook card ( not even sure they sell those here.)
Is there any other way I can upgrade to iOS 4.0.1 via Win7 ? Since from my understanding I need pwnage tool to make my own custom OS in order for it to keep activated?