206
Appendix
Appendix
Troubleshooting (FAQ)
Troubleshooting
z
You can diagnose the handset if there are problems with the
performance. For details, refer to the DOCOMO website.
z
Check whether the software update is required. If it is required,
update the software (
☞
P. 215 “Software update”).
z
If there is no improvement on the problems even after checking
the following items, feel free to contact the number listed in
“Repairs” (in Japanese only) on the last page or a repair counter
that DOCOMO specifies.
Power
Trouble Check items
The handset is not
turned on
y
Make sure the battery has not run out.
☞
P. 39 “Charging”
The screen does
not respond or the
handset cannot be
turned off
y
You can turn the power off forcibly by
pressing
3
(Power key) for at least 8
seconds.
y
Release your finger after the vibrator is
activated to turn the power off.
y
Note that data, contents you have set,
etc. may be deleted since the power is
turned off forcibly.
Charging
Trouble Check items
Cannot charge the
battery
The charging lamp
does not illuminate
or it flashes
y
Is the power plug of the adapter inserted
into the outlet or accessory socket
properly?
y
Are the adapter and the handset set
properly?
☞
P. 40 “Charging with AC
adapter”
y
When using an AC adapter (sold
separately), are the Type-C plug of the AC
adapter and the handset securely
connected?
☞
P. 40 “Charging with AC
adapter”
y
When using USB cable A to C 02 (sold
separately), is the power of PC turned on?
y
If a call, communication or another function
is performed for a long time while charging,
the handset may become warm and
charging may stop. Charge again after the
handset temperature lowers.
☞
P. 39
“Cautions while charging”
y
Is an adapter specified by NTT DOCOMO
being used for charging? Contact the
number listed in “Repairs” (in Japanese
only) on the last page or a repair counter
that DOCOMO specifies if you cannot
charge the battery even when using a
specified one.
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