Is it available to use pictures to unlock device when it is locked by Face Recognition?
When using face recognition to unlock the device, your phone can be unlocked by someone or something that looks like your image.
Due to usage of only a single frame from camera, there are technical limitations in coping with all spoofing attempts such as high-resolution images . Face recognition is less secure than Pattern, Pin, or Password, we recommend to use the Iris recognition, Fingerprint recognition, Pattern, Pin, or Password to lock the device.
Thus we do not recommend the usage of face recognition for high security authentication applications.