Appendix/Index
Troubleshooting
Troubleshooting
When you have a vague idea of
・
malfunctioning, you can perform diagnosis
by yourself.
For details, refer to NTT DOCOMO website.
Check if the software update is necessary for
・
the terminal. If necessary, perform the
software update (P.229).
When checking the following items not to
・
improve the state, contact the phone number
given in "Repairs (Inquiries/Request)" on the
last page of this manual (in Japanese only) or
DOCOMO-specified repair office.
Power supply
■
Cannot power on the terminal.
Check if the battery is not run out.
・
Screen is frozen, the power cannot be
turned off.
When the screen freezes or the power
・
cannot be turned off, press and hold the
power key and the volume up key at the
same time for approximately 9 seconds
and release it when the terminal vibrates 3
times consecutively to force stop.
* Note that some data and settings may be
erased due to force-quit operation.
Charging
■
Cannot charge (The notification LED does
not turn on, or the icon does not indicate
charging status.)
Check if the adapter's power plug is
・
correctly inserted to a power outlet or
accessory socket.
Check if the adapter and the terminal are
・
set correctly.
When using an AC adapter (optional),
・
check if the Type-C plug of the AC adapter
is connected to the terminal correctly.
P.41
When using the USB cable A to C 01
・
(optional), check if a PC is turned on.
If you execute calls, communications or
・
other function operations for a long time
while charging, the terminal may become
hot and the notification LED turns off
(charging stops) or battery level may
become low. In this case, wait until the
P.37
→
temperature of the terminal drops and
charge again.
The notification LED blinks in red and the
terminal cannot be operated.
When the battery level is low, charge the
・
battery.
P.41
→
P.37
→
Appendix/Index
→
216