If you buy a new iPhone or iPad, you might want to sell or give away your previous one. Before you do either, you should fully erase your old iPhone or iPad. Once you are certain that you have moved everything over to your new device from your old device, you can easily erase it. Here are instructions:
- Wake up or turn on your iPhone or iPad.
- Tap on Settings.
- Tap on General.
- Scroll down to the bottom and tap on Reset.
- Tap on Erase All Content and Settings. If you have a security passcode set, you’ll need to enter it.
Wait about 10-20 seconds for the device to be erased. This process erases all installed apps, plus all of your data including photos, music, email messages, etc. It also turns off the Find My iPhone feature so that future owners of your old iPhone or iPad won’t show up on your iCloud account.