Nokia 2160 - Manual (Page 16)

Note: Avoid using access codes similar to emergency
numbers such as 911 to prevent accidental dialing of
the emergency number.
Security Code (5 digits) Enter the 5-digit code
then left F
(OK) at
Security Code: prompt.
The Security Code comes with your phone and is
required with some phone features. Keep it secret and
in a safe place, separate from the phone.
You cannot change the Security Code. If you need a
new one, contact your dealer. The default is 12345.
If you enter an incorrect security code (CODE ERROR) five
times in a row, the phone won’t accept any entries for
the next five minutes.
Lock Code
You need the 4-digit lock code to turn on the Automatic
Phone Lock in Menu 5 1, or to change the Lock Code
in Menu 5 2. The default Lock Code is 1234.
12