Apple iPhone 12 mini

Press Settings.

Press Face ID & Passcode.

Press Set Up Face ID.

Press Get Started and follow the instructions on the screen to set up Face ID.

Press Done. If you haven't previously selected a phone lock code, key in a code of your own choice twice.

Press the indicator next to "iPhone Unlock" to turn the function on or off.

If you turn on the function, you can use your Face ID to turn off the phone lock code.

Press the indicator next to "iTunes & App Store" to turn the function on or off.

If you turn on the function, you can use your Face ID to authorise iTunes and App Store purchases.

Slide your finger upwards starting from the bottom of the screen to return to the home screen.