I was a proud owner of an IPhone 4 (iOS 4.2.1) which had greenpois0n jailbreak. My iPhone was stolen and now I own an iPhone 4 (iOS 4.1) not having any jailbreak.
I tried to restore my stolen iPhone contents to the new iPhone and iTunes is not letting me due to the old version of the iOS.
I would liketo upgrade iOS 4.1 to iOS 4.2.1 but iTunes is not letting me.
Can anyone help with the procedure to follow please?