1. Find "SIM card lock"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-efed1f55-4489-4f5d-9516-8655da24d6b0.png?width=198&height=396)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-62daae99-c5eb-46b5-a647-7c08ff1fa085.png?width=198&height=396)
Press Security & Location.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-ae9d152b-a0f6-4faa-a464-79d5035e5c42.png?width=198&height=396)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-7ace2ecd-2858-4fba-b80c-765ded3cf1dc.png?width=198&height=396)
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/7100822-f-cd870d53-f483-4389-b877-16ddb4e1e030.png?width=198&height=396)
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/7100822-f-fc0af5c0-fdc6-42d8-ad95-12c2ca0f0b2e.png?width=198&height=396)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-cd870d53-f483-4389-b877-16ddb4e1e030.png?width=198&height=396)
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