Appendix
86
Trouble
Detail
Page
The product
answers
calls when it
shouldn't
Is "Auto answering" set?
-
The battery
pack can only
be used for a
short time
Is it adequately charged?
• Charge until the red
charging lamp turns green.
P. 64
Does the battery pack
have adequate service life
remaining?
P. 29
Is the product left in the
place for a long period where
" " (out of service area)
appears?
P. 74
When making a
call, there is a
busy signal and
the call does
not go through
the receiver
Is the product within the
service area or where signal
is good enough?
P. 74
The wireless line is extremely
busy or the party is calling.
Retry later.
-
Display goes
off shortly
Is the time period before
entering "Sleep" set to short?
-
Display is dark
Is the "Brightness level" set
to dark?
-
Is the product or the battery
at a high temperature?
The display may become
dark depending on the
temperature of the product.
-
Trouble
Detail
Page
Cannot hear/
hard to hear
the other
party's voice
Is the call volume set to the
minimum?
P. 81
Is the receiver/speaker
covered with your ear?
Place the receiver/speaker to
your earhole.
P. 52
Cannot use
microphone
of earphone
microphone
Is the connector inserted
correctly?
Insert the connector straight
into the external connection
terminal.
P. 92
Operation
speed
decreased/
apps operate
unstably/
cannot activate
some apps
Operation becomes unstable
when available memory is low.
When available memory is
low, delete unnecessary apps
to secure free memory.
P. 73
Settings made
for specified
contacts do
not work
Is the caller ID notified? If
the caller does not notify the
caller ID, ringtone setting in
Contacts is not effective.
Group's incoming settings
in Contacts is not effective,
either.
-
Are two or more same
telephone number registered
in the phone book?
-