You can set up Touch ID in iOS Setup Assistant or by tapping Settings > General > Passcode & Fingerprint > Fingerprints.
To configure Touch ID, you must first set up a passcode. Touch ID is designed to minimise the input of your passcode, but your passcode will be needed for additional security validation, such as enrolling new fingerprints.
Use these steps to enrol your fingerprint:
1. Ensure that the Home button and your finger are clean and dry.
2. Hold the iPhone as you normally would when touching the Home button.
3. Touch your finger to the Home button and hold it there until you feel a quick vibration or until you are asked to lift your finger.
Tip: Don't press the button, only touch it lightly.
4. Continue to touch and lift your finger slowly, making small adjustments to the position of your finger each time.
5. Once the initial scanning is complete, you'll be asked to adjust your grip to capture the edges of your fingerprint.
6. Hold the phone as you normally would when unlocking it and touch the adjacent outer areas of your fingertip, instead of the center portion you initially scanned.
- If you have trouble enrolling one finger, try enrolling a different finger.
- As you use Touch ID, it will continue to learn and improve recognition of your fingerprint.
- Using Touch ID sets your Require Passcode setting to Immediately. You still have the option of entering your passcode simply by sliding to unlock.
- If you unintentionally slide and reach the passcode entry screen, you can still use Touch ID to unlock your iPhone (as long as there haven't been five unsuccessful attempts to recognise your finger).
- Touch ID works only for fingers that you have enrolled. You can enroll up to five fingers using Settings > General > Passcode & Fingerprint > Fingerprints.
- With each additional finger that you enrol, it may take slightly longer for Touch ID to recognise your finger when you use it.