These codes protect your SIM card against unauthorized 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.
PUK OR PUK2 CODES
PUK or PUK2 codes are required to unblock a PIN or PIN2 code.
If the codes are not supplied with your SIM card, contact your network service 
provider.
LOCK CODE
Also known as security code or password.
The lock code helps you protect your phone against unauthorized 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 info, contact the nearest care point for your phone, or your phone dealer.
Nokia 4.2 User Guide
© 2019 HMD Global Oy. All rights reserved.
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