Troubleshooting - Sharp SX633 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.
124 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.
Problem
• Check the radio signal strength
• Check to see if any error message is
Phone functions do not work
after the phone is turned on.
• Make sure the SIM/USIM card is
• If the message "SIM card error" is
• Check your call barring, fixed
Calls cannot be made or
received.
• Check if your phone is currently
• Check the remaining balance if
Solution
indicator as you may be outside
the service area.
displayed when you turn your
phone on. If so, contact your dealer.
correctly inserted.
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.
dialling setting, remaining battery
and call forwarding settings.
performing data communication
Bluetooth
using wireless
technology interface or a USB
data cable.
you are using a pre-paid SIM/
USIM card.