Wiping an iPhone means erasing your personal data and returning the device to the setup screen. Before you erase it, make sure anything you want to keep has been backed up and that you know the Apple Account credentials associated with the phone.
Back Up What You Need
Use iCloud Backup or create a local backup with Finder on a current Mac or the Apple Devices app on current Windows. Confirm the backup finished before erasing.
Start the Erase
- Open Settings.
- Tap General.
- Tap Transfer or Reset iPhone.
- Tap Erase All Content and Settings.
- Review what will be removed and continue through the authentication prompts.
Handle Find My and the Apple Account Prompts
The erase process may ask for your device passcode and Apple Account password so Find My/Activation Lock can be handled correctly. Follow the on-screen prompts rather than manually deleting individual apps or accounts first.
Choose What to Do with the eSIM
Depending on why you are erasing the device, iOS may ask whether to keep or remove an eSIM. If you are selling or giving away the iPhone, remove cellular service according to your carrier and transfer plan.
Know When the Wipe Is Finished
The process is complete when the iPhone restarts to the Hello/setup screen. Do not give the device to someone else while your personal setup screen or data is still visible.
Frequently Asked Questions
Is Erase All Content and Settings a factory reset?
Yes. It removes personal content and settings and returns the iPhone to setup.
Do I need iTunes to wipe a current iPhone?
No. A normal wipe can be done directly from Settings.
Can I undo the erase?
Not on the erased device itself. You would restore data from a backup during setup.
Summary
Back up the iPhone, then use Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. Complete the Apple Account and eSIM prompts and wait for the Hello screen.

Matthew Roberts created this site to help his friends and family with questions that they might have about how to change the settings on their iPhones. It now serves as an archive of iPhone how-to guides to help anyone that stumbles upon this website.