Sony Xperia 1 IV SO-51C, Instruction Manual

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246 Appendix
■
Terminal operation
Phenomenon Cause and handling
Become hot
while
operating/
charging • While calling, depending on the
radio wave condition or call
duration time, the terminal may
become hot around the earpiece/
speaker. This condition is not
abnormal.
• While operating or charging, or if
you use applications, record videos,
etc. for a long time while charging
the battery, the terminal, internal
battery or adapter may become
hot. It is not a problem for
operation. You can continue to use
the terminal.
• When the temperature of the
terminal is raised, a message
appears on the Notification panel
and some applications or services
may become unavailable.
In this case, wait until the
temperature of the terminal drops
and use again.
The operation
time provided
by the battery
is short
•
Is the terminal left for a long time under
the state of out of service area?
Out of service area, a lot of power is
consumed to search available radio
waves. If you are out of service area for a
long time, power off the terminal or set
Airplane mode.
→
P.47, P.190
• The operating time of the battery
varies depending on the operating
environment and the degradation
level of the internal battery.
→ P.259
• The internal battery is a consumable
part. Each time the internal battery is
recharged, the battery usage time per
one charge gradually decreases.
It is a time to replace the internal battery
if the usable time becomes extremely
short even if it is fully charged
comparing with when you purchased
the terminal.
For replacement of the internal battery,
DOCOMO keeps the terminal to replace
it as a chargeable service. See "Warranty
and After Sales Services" (P.255)
because we accept as a repair request.
•
Check if multiple applications are
activated.
Exit unused applications.
→
P.74
•
When the Wi-Fi function or
Bluetooth function is not used,
turn off the setting.
→
P.184, P.231
•
When STAMINA mode is set, the
operations and a part of functions of
the terminal are restricted so that the
consumption of the battery power
can be reduced.
→
P.200
Phenomenon Cause and handling