Settings
Sound/vibration/
notif.
Mode settings P. 133
Volume P. 133
Ringtone/notification P. 133
General P. 134
Notification P. 135
Wallpaper/
display
Standby screen P. 132
Brightness P. 132
Screen timeout P. 131
Font settings P. 131
VeilView P. 132
Relax View P. 131
Sub display P. 133
Security
Security key setting P. 139
Screen lock P. 135
Restrict calls P. 136
Secrecy settings P. 136
Set up SIM card lock P. 139
Unknown sources P. 135
Advanced settings P. 140
Troubleshooting (FAQ)
If your handset requires
z
troubleshooting, you can perform a diagnostic yourself.
For details, refer to the NTT DOCOMO website.
(
https://www.nttdocomo.co.jp/support/trouble/repair/
(in Japanese only)
)
z
Check whether the software update is required. If it is
required, update the software (
☞
P. 194"Updating
software").
z
If there is no improvement on the problems even after
checking the following items, feel free to contact the
number listed in "Troubleshooting & Repairs" (in
Japanese only) on the last page or a repair counter
that DOCOMO specifies.
Power
z
The handset is not turned on
y
Is the battery pack installed correctly?
☞
P. 59"Battery pack"
y
Make sure the battery has not run out.
☞
P. 60"Charging"
z
The screen does not respond or the handset cannot be
turned off
y
You can turn the power off forcibly by pressing
H
for at least 8 seconds.
* Note that data, contents you have set, etc. may
be deleted since the power is turned off forcibly.
184
Appendix/Index
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