Nokia 3.1 User Guide
12 Protect your phone
PROTECT YOUR PHONE WITH A SCREEN LOCK
You can set your phone to require authentication when unlocking the screen.
Set a screen lock
1. Tap Settings > Security & location > Screen lock .
2. Choose the type of lock and follow the instructions on your phone.
CHANGE YOUR SIM PIN CODE
If your SIM card came with a default SIM PIN code, you can change it to something more secure.
Not all network service providers support this.
Select your SIM PIN
You can choose which digits to use for the SIM PIN. The SIM PIN code can be 4-8 digits.
1. Tap Settings > Security & Location > SIM card lock .
2. Under the selected SIM card, tap Change SIM PIN .
Tip: If you don’t want to protect your SIM with a PIN code, switch Lock SIM card to Off , and
type in your current PIN.
ACCESS CODES
Learn what the different codes on your phone are for.
PIN or PIN2 code
PIN or PIN2 codes have 4-8 digits.
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.
© 2019 HMD Global Oy. All rights reserved. 49
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