1. Find "Set ‹SIM› lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1214b363-00bc-4236-ae78-5e4e269c5be2.png?width=206&height=434)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-759183bd-5d73-4acf-95a8-6aa536a47ed3.png?width=206&height=434)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c9bfa876-fe2e-4de4-bfcc-8defff957fe1.png?width=206&height=434)
Press Set ‹SIM› lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-07c92bd9-1800-4c47-bf38-249c7752105b.png?width=206&height=434)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-df64feb6-190f-4930-b20b-a1ff79cfef96.png?width=206&height=434)
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-038d0508-e96f-4f84-9326-ae9be3d6d960.png?width=206&height=434)
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-df64feb6-190f-4930-b20b-a1ff79cfef96.png?width=206&height=434)