Nokia 3210 - Change access codes; Restore factory settings (Menu 4-4)

Personalizing the phone
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Change access codes
You can change the following access codes: security code, PIN code,
PIN2 code. These codes may include characters 0 to 9 only.
The phone asks first for the current code and then for the new code
twice.
Note: Avoid using access codes similar to the emergency
numbers, such as 112, to prevent accidental dialling of the
emergency number.
Restore factory settings
(Menu 4-4)
You can reset the menu settings to their original values. For this you
need the security code.
This function has no effect e.g. on the following functions:
• the names and phone numbers stored in Phone book (Menu 1)
• messages (Menu 2)
• phone numbers listed in the ‘Call register’ menu (Menu 3)
• call divert (Menu 5)