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Appendix/Index
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
• 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
Check and remedy
Cannot turn on the
terminal.
• Is the battery exhausted? → P.26
Screen is frozen,
cannot turn off the
power
• Restart the terminal forcibly by pressing and
holding [Power/Screen lock key] and Volume
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.
Charging
Trouble
Check and remedy
Cannot charge the
terminal
• Is the adapters power plug inserted to the outlet
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.
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