120
Appendix/Troubleshooting
The operation time
provided by the battery
pack is short.
• Is the terminal left for a long time out of
service area? Out of service area, much
power is consumed to search available radio
waves for communication.
• The operating time of the internal battery
varies depending on the operating
environment and the secular degradation of
the battery pack.
• The internal battery is a consumable
accessory. The usage duration of the
battery per one charge decreases gradually
each time the battery is recharged. When
the operation time is too short even in the
full charge state, contact "Repairs" on the
last page of the instruction manual (in
Japanese only) or a DOCOMO-specified
repair office.
No operation is performed
even by tapping the touch
screen.
• Does the screen lock set? Cancel the
screen lock by pressing
p. ➝ P. 3 1
The screen reacts slowly
when a button is tapped.
• It may be occurred when large amount of
data is saved in the FOMA terminal or
transferring large-size data between the
FOMA terminal and microSD card.
Trouble Check and remedy
The touch screen reacts
slowly when a button is
tapped.
• Do you attach a protection sheet on the
terminal? The operations may be impeded
by the protection sheet.
• If the surface of the display is scratched or
damaged, contact "Repairs" on the last
page of this manual (in Japanese only) or
DOCOMO-specified repair office.
The UIM is not recognized. • Is the UIM installed in the right direction?
➝ P. 1 6
Cannot make a call. • Is the UIM installed to the FOMA terminal
correctly? ➝ P. 1 6
• Do you enter the city code?
• Do you set "Airplane mode"? ➝ P. 1 0 3
The ringtone does not
sound.
• Do you set Manner mode? ➝ P. 7 2
• Do you set "Voice call ringtone" to "Silent"?
➝ P. 7 1
• Is "Incoming call volume" of "Volume" set to
0? → P. 7 0
• Do you set Airplane mode? ➝ P.71, P.103
• Do you set ring time of Voice mail service or
Call forwarding to "0 sec"? ➝ P.108, P.111
Trouble Check and remedy
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