Samsung SGH-X427 - Manual (Page 127)

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Access Codes
There are several access codes that are used by your
phone and its SIM card. These codes help you protect the
phone against unauthorized use.
When requested for any of the codes explained below,
enter the appropriate code (displayed as asterisks) and
press the OK soft key. If you make a mistake, press the
key until the incorrect digit is cleared and then continue
entering the correct code.
The access codes, except for the PUK and PUK2 codes can
be changed using the Security menu (Menu 4.5). See
page 82 for further details.
Important! Avoid using access codes resembling
emergency numbers, such as 911, to prevent
accidental dialing of an emergency number.
Phone Password
The Phone Lock feature uses the phone password to
protect your phone against unauthorized use. The phone
password is supplied with the phone and is preset to
“00000000” at the factory.
To See
activate/deactivate the
Phone Lock feature page 83
(Menu 4.5.3).
change the phone
password page 83
(Menu 4.5.4).