1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-629147a9-be45-4c87-a829-408a04488f7d.png?width=208&height=436)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-34165b2c-cc32-48c5-bfc8-2c13a3c0ee49.png?width=208&height=436)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cd7d3f0e-092e-41c3-a0d7-febab74f47da.png?width=208&height=436)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-35c93cc5-dfef-4905-b62f-844d5d5c1bd9.png?width=208&height=436)
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-10eaaa99-234d-479e-80cf-0b5e3ea2b1ad.png?width=208&height=436)
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-d2c5b980-05e2-49c8-be32-2f722a376616.png?width=208&height=436)
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-10eaaa99-234d-479e-80cf-0b5e3ea2b1ad.png?width=208&height=436)