Several factors will affect adding the fingerprint to the Xiaomi Automatic Smart Door Lock, such as the finger status when adding fingerprint and the shot duration of finger pressing when adding fingerprint.
If the fingerprint fails to be added to the Xiaomi Automatic Smart Door Lock, please refer to the following details:
1. Please make sure the fingerprint sensor and finger are clean, free of foreign matter and liquid;
2. The time between two times of pressing should not exceed 10 seconds. The next press should be added as soon as possible after the last press;
3. Please make sure the fingerprint is not damaged or calloused, otherwise it will affect the addition and use of fingerprints.