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Problem
Where to check
Display
• If you do not perform
any operation for a
illumination
certain amount of
turns off too
time, the screen will
quickly.
automatically go
blank to conserve
remaining battery
power (Sleep mode).
• Is the 'Sleep' time
setting too short?
Display is
• Is the 'Brightness'
(display brightness)
dark.
setting too low?
• Are you performing
operation in a dark
location?
'There is
• Is an au IC-Card
inserted?
no service'
and '
' are
displayed.
Reference
Problem
P. 78
Cannot make
calls.
－
P. 69
Where to check
• Is an au IC-Card
inserted?
• Is the battery cover
securely attached to
the product?
• Did you enter the
correct phone
number? (Did you
enter the phone
number starting with
the area code?)
• Did you tap 'Dial' after
inputting the phone
number?
• Is 'Airplane mode'
set?
• Did you set the
correct setting in
'Roaming Area
Settings'?
Reference
P. 67
P. 69
P. 108
P. 142
P. 147
153
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