Symptom
Check item
Operation is
unstable
• This could be due to the installation of
applications to the mobile phone after
purchase. Start up your mobile phone in
Safe mode, and if the symptoms are
fixed, then try uninstalling your
applications. Sometimes this can fix the
symptoms.
* Safe mode is a function that starts up
your mobile phone in a state that is close
to that at the time of purchase.
･ Activating Safe mode
Press and hold
H
for one second or
more, and then touch and hold [Power
off] and tap [OK], or press
H
for two
seconds or more when the mobile
phone is turned off, and in the time
from when the logo of "NTT
docomo" is displayed to when the
home screen is displayed, press and
hold down
F
.
* When Safe mode is activated, "Safe
mode" is displayed on the lower-left
corner of the screen.
* To end Safe mode, once turn off the
power and restart.
･ After backing up important data in
advance, use Safe mode.
･ Widgets created by yourself may
disappear.
･ Since Safe mode is not the regular
startup status, please exit Safe mode
before using the mobile phone for
regular operations.
Applications do
not operate
correctly (for
example, they do
not start, or
errors occur
frequently)
• Make sure that any applications are
enabled. Enable any disabled
applications, and then try again (
Z
326
Appendix
