1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e2ed6960-f0f6-48b8-bffe-0696393cf6b9.png?width=212&height=380)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4f5204de-e2c1-4d55-a1bf-125f584fad0e.png?width=212&height=380)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5b780e65-4780-4e39-abef-c418e30b1b9b.png?width=212&height=380)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-65c70f98-e658-4a03-8535-8c4354e19f20.png?width=212&height=380)
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-0d5c2207-4f1a-4692-a0f6-93373e5cdd83.png?width=212&height=380)
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-a229cc86-c7f6-4cc8-9164-a3dc9e4ff815.png?width=212&height=380)
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-0d5c2207-4f1a-4692-a0f6-93373e5cdd83.png?width=212&height=380)