User's Manual

225
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/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.
The SIM/USIM card becomes locked.
• 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.
The display is difficult to read.
• Adjust the backlight brightness for the display.
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/USIM card is correctly inserted.
Calls cannot be made or received.
• If the message “SIM card error” 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 forwarding settings.
• Check if your phone is currently performing data communication using Infrared (IrDA),
Bluetooth wireless
technology interface or a USB data cable.
• Check the remaining balance if you are using a pre-paid SIM/USIM card.
Call quality is poor.
• Your current location may not provide good call quality (i.e., in a car or train). Move to a location where
radio signal strength is greater.