can't update iphone 4 from 4.3.3 to 6.1
i can't update iphone 4 from 4.3.3 to 6.1
iPhone 4, iOS 4.3.3
i can't update iphone 4 from 4.3.3 to 6.1
iPhone 4, iOS 4.3.3
Since you attached an "Erase All Content and Settings" article, there must be a lot more to your question than simply updating iOS.
What exactly are you trying to do? What are the current circumstances? Did you just receive this iPhone from someone else? Why are you trying to erase it?
can't update iphone 4 from 4.3.3 to 6.1