User's Manual

55
Appendix/Index
Troubleshooting
Trouble Detail Page
Cannot turn on by
pressing p.
Is the battery pack charged? P. 8
Is the battery pack properly installed? –
Are the contacts on the battery pack clean? –
Do you hold down p for at least 1 second?
P. 9
The power is turned
off automatically.
Has the battery run out? P.8
The power is turned
off while the wake-up
screen is displayed.
Is there enough power left in the battery pack?
* If the remaining power is low, the screen turns off soon
after wake-up screen is displayed.
P. 8
Cannot make any
phone calls.
Is your PTL21 turned on?
P. 9
Is the au IC-Card inserted? P.11
Is the phone number you entered correct?
(Did you start with the area code first?)
P.28
Did you tap [
] after entering the phone
number?
P.28
Did you set correct setting in “Area Settings”? P.52
Is your PTL21 in “Airplane mode”?
–
Cannot receive any
phone calls.
Do you have sufficient signal strength? P.18
Are you outside the service area? P.18
Is your PTL21 turned on?
P. 9
Is the au IC-Card inserted? P.11
Did you set correct setting in “Area Settings”? P.52
Did you set “Call Block”? –
Is your PTL21 in “Airplane mode”?
–
Is the call forwarding service set? –
Trouble Detail Page
The “out of service
area” indicator is
displayed.
Are you outside the service area or in a location
with poor signal strength?
P.18
Are you covering the built-in antenna with your
fingers or hand?
P. 6
Did you set correct setting in “Area Settings”? P.52
Cannot connect with
Wi-Fi.
Is your PTL21 receiving a signal from the wireless
access point?
P.18
Did you configure your Wi-Fi settings? P.50
I cannot hear any
ring tone.
Is the volume set to “0”? –
Is your PTL21 in manner mode?
P.30
Cannot charge the
battery pack.
Is the charger connected properly? P. 8
Is the battery pack properly installed? –
Are the terminals of the desktop holder or PTL21
clean?
–
Cannot charge from a PC via a microUSB
cable.
–
Cannot perform any
key/touch panel
operations.
Is your PTL21 turned on?
P. 9
Did you unlock the screen? P. 9
Is your PTL21 in sleep mode?
P. 9
“auIC Card(UIM)
error” is displayed.
Is the au IC-Card inserted? P.11
Is a card different from the au IC-Card used? P.11
A message
indicating “Please
connect charger”
appears and an
alarm sounds.
The battery pack is almost empty. P. 8
Appendix/Index