Ever wondered what the different codes on your phone are for?

PIN or PIN2 code

(4-8 digits)

These protect your SIM card against unauthorised use or are required to access some features.

You can set your phone to ask for the PIN code when you switch it on.

If you forget the codes or they aren't supplied with your card, contact your network service provider.

If you type in the code incorrectly 3 times in a row, you need to unblock the code with the PUK or PUK2 code.


These are required to unblock a PIN or PIN2 code.

If not supplied with your SIM card, contact your network service provider.

Security code (lock code, password)

This helps you protect your phone against unauthorised use.

You can set your phone to ask for the lock code that you define.

Keep the code secret and in a safe place, separate from your phone.

If you forget the code and your phone is locked, your phone will require service. Additional charges may apply, and all the personal data on your phone may be deleted.

For more information, contact Nokia Care or your phone dealer.


This is used to identify phones in the network. You may also need to give the number to Nokia Care services.

To view your IMEI number, dial *#06#.