SELECT YOUR SIM PINYou can choose which digits to use for the SIM PIN. The SIM PIN code can be 4-8digits.Tap Settings > Security > Set up SIM card lock .1.Under the selected SIM card, tap Change SIM PIN .2.Tip:If you don’t want to protect your SIM with a PIN code, in Set up SIM card lock , switchLock SIM card to Off , and type in your current PIN.Access codesLearn what the different codes on your phone are for.PIN OR PIN2 CODEPIN or PIN2 codes have 4-8 digits.These codes protect your SIM card against unauthorized use or are required toaccess some features. You can set your phone to ask for the PIN code when youswitch it on.If you forget the codes or they aren't supplied with your card, contact your networkservice provider.If you type in the code incorrectly 3 times in a row, you need to unblock the codewith the PUK or PUK2 code.Nokia 6 2nd Generation User Guide© 2018 HMD Global Oy. All rights reserved. 50