1. Find "Set up SIM card lock"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8a659b78-ec94-4757-baf0-0c9a92312e5c.png?width=202&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aa45eaf9-c8c6-4bf7-9dc1-893c103af5ea.png?width=202&height=418)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6502ad1c-3d07-4434-8625-398be4389e0b.png?width=202&height=418)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a67a75ee-264c-4d55-9a11-401da836bace.png?width=202&height=418)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-44d28ef1-7a0f-443b-b3b1-1598896b7baa.png?width=202&height=418)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f81255bf-d307-44c4-a6f2-a40eab70ad3b.png?width=202&height=418)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f81255bf-d307-44c4-a6f2-a40eab70ad3b.png?width=202&height=418)
Key in your PIN and press OK.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Vodafone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b48cd185-a054-47af-ae94-9cb7a001aa47.png?width=202&height=418)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f81255bf-d307-44c4-a6f2-a40eab70ad3b.png?width=202&height=418)