Instruction manual

Settings
82
◆ Fingerprint authentication function
Fingerprint authentication is an authentication sliding your
finger over the fingerprint sensor.
･ Fingerprint authentication can be used for setting/
canceling Osaifu-Keitai Lock besides for canceling the
screen lock or password manager.
❖ Precautions for using fingerprint
authentication
Precautions for using fingerprint authentication are as
follows:
･ This function is used to authenticate the information on
the characteristics of fingerprint image. For this reason,
user with fingerprint that does not provide enough
characteristics information may not be able to use the
fingerprint authentication.
･ Scanning 3 or more times with the same finger is
needed to register your fingerprint. Do not use different
fingers to register.
･ Authentication performance (the probability of
successful fingerprint authentication for correct sliding
of the finger) depends on the condition of use. The
following finger conditions may make fingerprint
registration difficult or reduce the authentication
performance. Taking measures according to the
condition of your finger including washing hands,
wiping hands, using a different finger for fingertip
authentication and applying cream if the hand is rough
or dry may improve the authentication performance.
- Fingers are wrinkled, wet or sweaty after taking a bath
etc.
- Fingers are sweaty or oily enough to obscure ridges of
fingertip, or fingers are soiled with dirt or oil.
- Rough or damaged (cut, inflamed, etc.)
- Extremely dry or having tendency to get dry
- Became fat or thin to cause the fingerprint to change
- Fingerprint unclear by wearing away
- Surface in a condition extremely different from that at
the time of fingerprint registration
･ For registration/authentication of your fingerprint, align
the first joint of one of your fingers to the center of the
sensor, press your finger parallel to the sensor and slide
it downward until it passes the fingerprint sensor area.
To prevent authentication failure due to difference in
finger positions at registration and authentication, keep
your finger parallel to the terminal as you slide it.
･ If the sliding movement is too fast or too slow, the
fingerprint may not be correctly recognized.
･ Registration/Authentication of fingerprint may be
difficult with your thumb as the center of the whorl of the
fingerprint may be displaced or distorted. Try as much
as possible to slide your finger so that the center of the
whorl of the fingerprint passes the center of the
fingerprint sensor.
･ If the fingerprint is not correctly read, a warning
message appears.
･ If fingerprint registration or authentication is started
with the finger put on the fingerprint sensor, activation
may be unavailable. Put the finger off from the
fingerprint sensor and retry the operation.
･ When connecting the terminal using a USB cable to a
device which requires grounding such as a desktop PC,
make sure that the device is grounded in advance. If the
connected device is not grounded, fingerprint
authentication may be unavailable. In this case, perform
fingerprint authentication while touching a metallic part
(frame, external connector, etc.) of the connected device
or after disconnecting the terminal.
･ Fingerprint authentication technology does not
guarantee complete identity authentication or
verification. Note that DOCOMO assumed no
responsibility for any damage caused by use of this
product or unavailability of this product.