Symptom
Check item
Battery life is
short
• Is the cell phone 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.
• The operation time of the
internal battery varies by
the operating environment
and the secular
degradation of the internal
battery.
• The internal battery is a
consumable accessory. The
usage duration of the battery
per 1 charge decreases
gradually each time the
battery is recharged. When
the operation time is too
short even if the cell phone
is fully charged, contact
"Technical Inquiries &
Repairs" (in Japanese only)
on the back cover of this
manual or a repair counter
specified by mobile operator.
Symptom
Check item
No reaction
when tapping
the touch
screen or
pressing the
keys
• Has the screen been
• Is the power off?
Slow reaction
when tapping
the touch
screen or
pressing the
keys
• It might occur if a large
amount of data is saved
in cell phone or data with
extremely large size are
processed between this
cell phone and microSD
card.
The nano UIM
card is not
recognized
• Is the nano UIM card
inserted in the right
direction?
→ P42
Clock is
wrong
• Clock may become wrong if
the power has been turned
on for a long time.
Check if it is set to "Auto-
date & time", move to a
place with better reception
and power it on. → P189
223
Appendix/Index
Содержание KF1919
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