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Appendix/Index
Troubleshooting
Troubleshooting
• First, check if software update is needed and if
it is necessary, update the software (P.540).
• When problems do not improve after checking
the following items, contact the phone
number given in "Repairs" on the last page (in
Japanese only) or DOCOMO-specified repair
office.
Power
Trouble
Check and remedy
Cannot turn on
the terminal
(cannot use
the terminal).
• Is the battery pack installed
correctly? → P.57
• Is the battery exhausted?
→ P.62
Screen is
frozen, cannot
turn off the
power.
• Restart the terminal forcibly
by pressing and holding
for 8-10 seconds when
the screen is frozen or you
cannot turn the power off.
* Note that data and the
settings may be erased
since the operation
restart forcibly.