Sharp gx15 User Guide

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.

The 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 
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 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 the 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), Bluetooth 
wireless technology interface or 
a USB data cable.

• Check the remaining balance 

if you are using a pre-paid 
SIM card.

Problem

Solution