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Troubleshooting (FAQs)
Troubleshooting
• First, check whether software update is
required. If so, update the software. (Updating
Software → P277)
• If it does not improve after conirming the
check items, contact "Repairs" (in Japanese
only) on the back cover of this manual or a
repair counter speciied by DOCOMO.
Appendix/Index
260
■ Power supply
Symptom
Power does
• Is the battery dead?
not turn on
→ P39
Screen
• Force quit or restart this
is frozen,
terminal when screen is
cannot power
frozen or when power cannot
of
be turned of.
– Press the power key for
over 10 seconds (two
seconds when it is force
restarting) to force quit.
– Press the power key for
over eight seconds to
restart.
* Note that data or
settings may get lost
caused by force quit or
restart.
Check item
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