Troubleshooting - Sharp 902SH User Manual

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.
Calls cannot be made or received.
Call quality is poor.
• 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.
• 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),
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). Move to a location where
radio signal strength is greater.
Solution

Troubleshooting

Bluetooth
wireless
227