Sony XPERIA X PERFORMANCE, User Manual

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85
Safety Precautions
Xperia™ X Performance
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
- The shape of fingerprint has changed due to weight loss
or weight gain
- Faded due to abrasion, etc.
- 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.
Technical Conformity
Handset is certified as wireless equipment for low power
electric data communication based on the Radio Law. No
license is required for using handset as the wireless radio
station. However, disassembling/modifying handset may be
subject to penalty by law.
・Never use modified handset. Using modified handset is a
violation of the Radio Law.
・Handset is compliant with the technical standard
conformance of specified wireless equipment based on the
Radio Law, and as a proof of it, the "Technical Compliance
Mark
" appears on the electronic nameplate of handset.
To view the electronic nameplate, in Home Screen,
Settings About phone Certificates .
The technical standard conformance certification etc. is
invalidated by removing the screws and altering the inside
of handset. Using handset with invalid technical standard
conformance certification etc. is a violation of the Radio
Law.
・Do not alter the basic software illegally. May be regarded as
software modification and repairs may be refused.
Forcibly Powering Off
If screen freezes or power-off operation is not available,
forcibly power off by Pressing & Holding Power Key (
)
and Volume Up Key at the same time for approximately 8
seconds, then release after handset vibrates three times
consecutively.