Sharp O2 - Manual (Page 114)

113 Troubleshooting
Troubleshooting
Problem Solution
The phone does not
turn on.
• Make sure the battery is
properly inserted and
charged.
PIN code or PIN2
code is rejected.
• Make sure you have entered
the correct code (4 to 8
digits).
• Your SIM card/protected
functions will become locked
after 3 unsuccessful
attempts.
• Contact your SIM provider if
you do not have the correct
PIN code.
SIM card becomes
locked.
• Enter PUK code (8 digits)
provided by your service
provider (if supported).
• If the attempt is successful,
enter the new PIN code and
confirm your phone is
operational again. Otherwise
contact your dealer.
The display is diffi-
cult to read. • Adjust the LCD contrast.
Phone functions do
not work after the
phone is turned on.
• Check the radio signal
strength indicator as you may
be outside the service area.
• Check to see if any error
message is displayed when
you turn your phone on. If so,
contact your dealer.
• Make sure the SIM card is
correctly inserted.
Calls cannot be
made or received.
• If the message “SIM Card
Error” is displayed at start-up,
you cannot use your SIM card
or SIM card is damaged.
Contact your dealer or
network service provider.
• Check your call barring, fixed
dialling setting, remaining
battery and call forwarding
settings.
• Check if your phone is
currently performing data
communication using Infrared
(IrDA).
• Check the remaining balance
if you are using a pre-paid
SIM card.
Problem Solution