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Appendix/Index
Troubleshooting
Troubleshooting
• First, check if software update is needed and if
it is necessary, update the software (P.589).
• When problems do not improve after checking
the following items, contact the phone number
written in "Repairs" on the back cover (in
Japanese only) or DOCOMO-specied repair
oce.
Cannot
turn on the
terminal
(cannot use
the terminal).
• Is the battery pack installed
correctly? → P.63
• Is the battery exhausted?
→ P.66
Screen
is frozen,
cannot turn
o the power.
• Restart the terminal forcibly
by pressing and holding
(Power/Screen lock key) for
more than seven seconds
when the screen is frozen or
you cannot turn the power
o.
* Note that data and the
settings may be erased
since the operation restart
forcibly.
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