Touch ID Test
Test fingerprint sensor functionality
Bottom lineEnroll a fingerprint in System Settings > Touch ID & Password, then unlock from the lock screen: it should respond within 1–2 seconds from several finger angles. Touch ID that cannot enroll or fails often usually means the sensor or logic board was replaced without Apple calibration—cross-check with Parts & Service.
Open Touch ID Settings
System Settings > Touch ID & Password
Add a Fingerprint
Click 'Add Fingerprint' and follow the prompts to register your finger
Test Recognition
Lock the screen and unlock using Touch ID. It should respond within 1-2 seconds
Test Multiple Angles
Try unlocking with different finger angles to ensure consistent recognition
Note: Touch ID security parts are linked to the Mac and may require Apple calibration after repair. Check Parts & Service if Touch ID has been serviced.