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Appendix
Troubleshooting
Troubleshooting
When you have a vague idea of
•
malfunctioning, you can perform diagnosis
by yourself.
For details, refer to NTT DOCOMO website.
Check if the software update is necessary for
•
the terminal. If necessary, perform the
software update (P.252).
If your problem persists even if you check the
•
troubleshooting concerning your
phenomenon, feel free to ask us. For inquiries,
refer to the last page.
Power supply
■
Phenomenon
Cannot power
Check if the battery is not run out.
on the terminal
P.41
Screen is
When the screen freezes or the
frozen, or the
power cannot be turned off, press
power cannot
and hold the power key and the
be turned off
volume up key at the same time for
at least 10 seconds, wait until the
terminal vibrates once and then 3
times consecutively, and then release
your fingers to force stop.
* Note that some data and settings
may be erased due to force-quit
operation.
Cause and handling
Appendix
→
244
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