Troubleshooting - Sharp 703SHf User Manual

Troubleshooting

Problem
The phone does not turn on.
PIN code or PIN2 code is
rejected.
The SIM/USIM card becomes
locked.
The display is difficult to
read.
Phone functions do not work
after the phone is turned on.
110 Troubleshooting
Solution
• Make sure the battery is properly
inserted and charged.
• Make sure you have entered the
correct code (4 to 8 digits).
• Your SIM/USIM card/protected
functions will become locked after
three unsuccessful attempts.
• Contact your SIM/USIM provider if you
do not have the correct PIN code.
• Enter the 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.
• Adjust the backlight brightness for the
display.
• 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/USIM card is
correctly inserted.
Problem
• If the message "Insert SIM Card" is
displayed when the phone is switched
on, you cannot use your SIM/USIM
card or the SIM/USIM card is
damaged. Contact your dealer or
network service provider.
• Check your call barring, fixed dialling
setting, remaining battery and call
Calls cannot be made or
received. forwarding settings.
• Check if your phone is currently
performing data communication using
Infrared (IrDA),
technology interface or a USB data
cable.
• Check the remaining balance if you are
using a pre-paid SIM/USIM card.
• Your current location may not provide
good call quality (i.e., in a car or train).
Call quality is poor.
Move to a location where radio signal
strength is greater.
Solution
Bluetooth
wireless