Step-by-step guides for turning settings on or off, resetting and fixing your iPhone. Every guide says which iOS version it was checked on, so you know the steps match your phone.
Most steps work on any iPhone that runs a recent version of iOS. Each guide names the iOS version its steps were checked against, and calls out steps that differ on older models.
Will following a guide delete my data?
Settings guides do not delete anything. Reset guides warn you first and tell you to back up to iCloud or a computer before you start.
What if my menu looks different?
Apple moves settings between iOS versions. Check the version note at the top of the guide, and tell us through the contact page if the steps no longer match.