Sony Xperia XZ2 User Manual page 90

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・Use Attachment 52B for setting handset into Desktop
Holder (optional accessory).
Charging
・AC Charger (commercially available) may become warm while
charging. It is not abnormal.
・If charging is started, although handset is unavailable
for operation, screen indicating that handset is charging
appears. For this reason, do not charge where handset is
required to be powered off.
・Check battery level with Status Indicator at the top of
screen.
・Operation time of Internal Battery varies by usage
environment or the battery condition.
・Internal Battery is consumable item. Operation time per
charge decreases by charging repeatedly. When operation
time with full-charged is extremely shortened, it is time to
replace. Internal Battery is not customer-replaceable. Bring
handset to a SoftBank Shop etc. to replace Internal Battery.
Fee is incurred for the replacement. Contact a SoftBank
Shop or Customer Service.
・Using application while charging may shorten Internal
Battery life.
Touchscreen
・Handset uses a touchscreen Display. Operate with your
fingers on Display.
・Touch with your fingers lightly. Do not press forcibly with
fingers or push with a sharp-pointed object (nail, ball-point
pen, pins, etc.)
・Touchscreen may not work or malfunction in the following
cases:
- Operation with fingernail
- Foreign object on Display
- Protection sheet or sticker applied on Display
- Waterdrop or dew condensation on Display
- Operation with fingers wet or sweaty
- Operation under water
・Although Display is made with hardened and shatterproof
glass, touching scattered or exposed parts accidentally may
cause injuries.
Earpiece/Speaker
Handset earpiece is also used as a speaker. Loud sound may
be heard from the speaker when playing sound, for arriving
incoming calls, etc.
Subjecting your ears to loud sound may affect your hearing
ability. Use Earpiece/Speaker with care to prevent your
ears from being subject to loud sound. For example, remove
Earpiece/Speaker from your ears as soon as a call is ended.
Fingerprint Authentication
・Fingerprint authentication uses the characteristics
of your fingerprint. If your fingerprint image has few
characteristics, fingerprint authentication may not be
available.
・Authentication performance (authenticating fingerprint
when using Fingerprint Sensor) depends on usage
condition. If your finger is under any of the following
conditions, registration of fingerprint may be difficult or
authentication performance may degrade. Authentication
performance may be improved by washing or drying hands,
registering a different finger, registering fingerprint using
a wider surface of your finger, etc.
- Wrinkled after taking a bath, etc.
- Wet with water, sweat, etc.
- Dried
- Covered with grease (e.g. hand cream)
- Dirty with mud or grease
- Rough or injured (cut, inflammation, etc.)
- Abraded and faded
- Faded due to abrasion, etc.
- The shape of fingerprint has changed due to weight loss
or weight gain
- The surface condition of finger is extremely different
from when you registered fingerprint
・Personal authentication and identification are not
completely guaranteed by fingerprint authentication
technology. Note that SoftBank Corp. is not liable for any
damage incurred due to misuse by a third party or due to
handset being unable to be used.
Precautions on Fingerprint Sensor
- Do not hit or apply strong impact. This may cause a
malfunction or damage. Also, do not scratch the surface or
poke it with a sharp object such as a ballpoint pen or pin
tip.
- Do not attach stickers or do not daub with ink, etc.
- If dirt such as dust or sebum is attached to Fingerprint
Sensor, reading fingerprints may be difficult or the
authentication performance may be degraded. Occasionally
clean the surface of Fingerprint Sensor.
- If the time of touching is too short or too long,
authentication may fail. Touch the center of Fingerprint
Sensor straight with the vortex of your fingerprint.
- Activating Fingerprint Sensor may fail if a finger is
placed on it before starting registration or authentication.
Release your finger once and try again.