How to erase data from previous iPhone before switch to a new device

It's essential to erase your data from your old iPhone for security purposes. Be sure to back up your data before proceeding.

1. Go to Settings and select "General".
2. Tap on "Transfer or Reset iPhone".
3. Choose "Erase All Content and Settings".
4. Tap "Continue".
5. Follow the on-screen instructions to erase all data.
6. During the erasure process, do not turn off your device or press any buttons, as this may cause the process to fail.
7. Once you see the "Hello" screen, the process is complete.