Appendix
Symptoms
What you should check
Page
Display
brightness is
dim
Is the product or battery
temperature high? The display
may dim depending on the
temperature.
－
In Eco Mode, display brightness
is set to the lowest value.
P. 86
Cannot hear/
Hard to hear
the other party
Is call volume set to the
minimum?
P. 82
Place your ear hole to the
receiver.
P. 39
Cannot use
microphone
on earphone
microphone
Is the connector inserted
correctly? Insert firmly all the way
into the earphone microphone
terminal.
P. 102
Applications
don't activate
Is use of applications restricted?
P. 60
Is the usable time of day or
usable time restricted?
P. 60
Individual
contacts
settings do not
work
Is a caller
’
s phone number
notified (visible) when they call?
If not notified, incoming settings
for contacts are not enabled.
Group incoming settings for
contacts are also not enabled.
－
Is a same phone number
registered 2 or more times in
contacts?
P. 82
Symptoms
What you should check
Page
microSD
memory card
isn't
recognized
Is the microSD memory card
installed properly?
P. 46
Camera does
not operate
Is the battery low?
P. 48
Is the product or battery warm?
Functionality is sometimes
stopped by the temperature.
－
Is the usable time of day or
usable time restricted?
P. 60
Cannot make
emergency
calls
Is the correct au IC Card
inserted?
P. 43
Are you using a card other than
a specified au IC Card?
－
Is the product out of the service
area or in an area where the
signal is weak?
P. 79
Cannot obtain
location when
personal
alarm
activated
Is "Send Location information" for
"Personal alarm settings" on?
P. 63
Are the terms of use for the
personal alarm agreed to? In the
parental settings, Security
settings
→
Personal alarm
settings
→
Confirm the terms of
use and tap [Agree].
P. 64
95