How to delete everything from your iPhone before selling it
How to erase all data and wipe out your iPhone:
- Launch the Settings app from the Home screen of your iPhone or iPad.
- Now tap on General.
- Scroll to the bottom and tap on Reset.
- Tap on Erase All Content and Settings.
- Tap on Erase Now.
- Enter your Passcode.
- Enter the Apple ID and password and then your iPhone will be reset to factory settings.