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Appendix/Index
Troubleshooting (FAQ)
Troubleshooting
• If you suspect the terminal does not operate correctly, you can check
with diagnostics by yourself. For details, see NTT DOCOMO website.
https://www.nttdocomo.co.jp/support/trouble/repair/ (In Japanese only)
• First, check if software update is needed and if it is necessary, update
the software (P.147).
• When problems do not improve after checking the following items,
contact the phone number given in "Technical Inquiries & Repairs" on the
last page (in Japanese only) or DOCOMO-specified repair office.
Power
‡
Trouble
Cannot turn on the
• Is the battery exhausted? → P.26
terminal.
Screen is frozen,
• Restart the terminal forcibly by pressing and
cannot turn off the
holding
power
DOWN key for 7-8 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.
Check and remedy
[Power/Screen lock key] and Volume
Charging
‡
Trouble
Cannot charge the
• Is the adapters power plug inserted to the outlet
terminal
or accessory socket correctly?
• Are the adapter and terminal inserted correctly?
• When using an AC adapter (sold separately), are
the Type-C plug of the AC adapter and terminal
inserted correctly? → P.26
• When using a USB cable A to C 01 (sold
separately), is the power of the PC turned on?
• If you execute calls, communications or other
operations for a long time while charging, the
terminal may become hot and charging may fail.
In this case, wait until the temperature of the
terminal drops down and retry charging.
139
Check and remedy
Appendix/Index
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