Solve Problems - Samsung SGH-X640 User Manual

Reset settings
(Menu 9.10)
Use this menu to reset the phone to its default
settings.
1. Select a setting category.
2. Press <Yes> to confirm the reset.
3. Enter the 4- to 8-digit phone password and press
<OK>.
The password is preset to 00000000. You can
change this password.
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Solve problems

To save the time and expense of an unnecessary service
call, perform the simple checks in this section before
contacting a service professional.
When you switch on your phone, the following
messages may appear:
"Insert SIM"
• Be sure that the SIM card is correctly installed.
"Phone lock Enter password"
• The automatic locking function has been enabled.
You must enter the phone's password before you
can use the phone.
"Enter PIN"
• You are using your phone for the first time. You
must enter the PIN supplied with the SIM card.
• The PIN Check feature is enabled. Every time the
phone is switched on, the PIN has to be entered.
To disable this feature, use the PIN check menu.