If you have unlocked -- for use on a carrier other than AT&T -- your iPhone and want to restore it (because of troubleshooting issues or other reasons) while avoiding firmware/software update 1.1.1, ...

If you jailbreak your iOS devices, there usually comes a point where you get stuck on an older firmware because the latest one hasn’t yet been hacked by the jailbreak community. When this time comes, ...

The choice to perform a factory reset on an iPhone is driven by multiple motivations, ranging from the intent to sell the device, addressing ongoing operational problems, to a wish for a clean slate.