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Appendix/Index
Troubleshooting (FAQ)
Troubleshooting
First, check whether the software update is required. If it is
required, update the software (nP. 88 "Updating software").
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
■
The tablet is not turned on
･ Make sure the battery has not run out. nP. 14 "Charging"
The screen does not respond or the tablet cannot be turned off
･ You can turn the power off forcibly by pressing H for at least
8 seconds. nP. 16 "Turning power off forcibly"
･ Note that data, contents you have set, etc. may be deleted
since the power is turned off forcibly.
Charging
■
Cannot charge the battery
The charging lamp does not illuminate or it flashes
･ Is the power plug or the cigarette lighter plug of the adapter
inserted into the outlet or cigarette lighter socket properly?
nP. 15 "Charging with AC adapter/DC adapter"
･ Are the adapter and the tablet set properly?
nP. 15 "Charging with AC adapter/DC adapter"
･ When using an AC adapter (sold separately), are the
microUSB plug of the AC adapter and the tablet securely
connected? nP. 15 "Charging with AC adapter/DC adapter"
･ If a call, communication or another function is performed for a
long time while charging, the tablet may become warm and
charging may stop. Charge again after the tablet temperature
lowers. nP. 14 "Cautions while charging"
･ 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.
■
Tablet operation
Apps do not work properly (e.g. inability to activate them,
frequent errors)
･ Make sure there is no disabled app. Try again after enabling a
disabled app, if any. nP. 67 "Enabling an app"
Becomes hot while operating/charging
･ The tablet, internal battery or adapter may become warm while
operating or charging, when watching TV etc. for a long time
while charging, etc. There is no operational problem.
nP. 14 "Cautions while charging"
Battery life is short
･ Make sure the tablet is not left for a long time outside the
service area.
Outside the service area, since radio waves are searched to
make communication available, more electric power than
usual is used.
･ The battery life depends on the usage environment and
deterioration level. nP. 91 "Main specifications"
･ Internal battery is a consumable product. Battery life per
charge is gradually reduced every time the battery is charged.
Contact the number listed in "Repairs" (in Japanese only) on
the last page or a repair counter that DOCOMO specifies if the
battery life becomes extremely shorter than at the time of
purchase even after fully charged. nP. 15 "Internal battery
usable life"
Not activated by touching or pressing keys
･ Make sure the tablet is not turned off. nP. 16 "Turning power
on"
Screen response is slow when touching or pressing keys
･ This may happen when a great deal of data is saved on the
tablet, when a large amount of data is being transferred
between the tablet and the microSD Card, etc.
nP. 65 "Storage"
docomo mini UIM card is not recognized
･ Is the docomo mini UIM card inserted facing right direction?
nP. 13 "docomo mini UIM card"
Clock is incorrect
･ Clock may become incorrect if the power is turned on for a
long time. Make sure [Automatic date & time] is enabled and
turn the power on again in a location with good signal
conditions. nP. 72 "Date & time"
Tablet operation is unstable
･ The apps installed on the tablet after purchase may become a
cause. If you can improve the symptoms by activating the
tablet with the safe mode set, you may be able to improve the
symptoms by uninstalling the installed apps.
※ The safe mode is a function to activate the tablet nearly
in the state of default.
･ For activating the safe mode
Turn the power on again when the power is turned off, then
keep pressing y on the screen during activation until the
home screen is displayed.
※ Alternatively, H while the power is turned on (for at least
1 second)/touch and hold [To sleep]/[Power off
completely]/[OK] to activate the safe mode.
※ When the safe mode is activated, [セーフモード]/[Safe
mode] is displayed at the bottom left of the screen.
※ To deactivate the safe mode, turn the power on again.
･ Back up the necessary information in advance before using
the safe mode.
･ Widgets created by yourself may disappear.
･ The safe mode is not an ordinary activating state and thus
deactivate the safe mode if you want to use in an ordinary
way.
Calling
■
Calls cannot be made by touching or pressing keys
･ Make sure [Restrict calls] in Application lock is not set.
nP. 69 "Application lock"
･ Make sure Airplane mode is not set. nP. 68 "More"
Ringtone does not sound
･ Make sure the ringtone volume is not set to "0".
nP. 64 "Sound"
･ Make sure Public mode (power OFF), the manner mode or
Airplane mode is not activated. nP. 35 "Network service",
P. 64 "Mode settings", P. 68 "More"
･ Make sure call rejection is not set. nP. 36 "Reject call
setting"
･ Make sure the ringing time for Voice Mail Service or Call
Forwarding Service is not set to "0 seconds".
nP. 35 "Network service"
85
Appendix/Index
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