1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-9c598387-c2fb-47a8-b869-deaf15287d4e.png?width=284&height=378)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-a5d545f8-132b-4a27-86eb-f87a9e29b7f7.png?width=284&height=378)
Press the info icon next to the required price plan below "MOBILE PLANS".
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-e1dd017c-ddfb-4b5c-8d2d-060430f4ccab.png?width=284&height=378)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-dadd96da-69ca-4b7e-adc8-188795a33ffc.png?width=284&height=378)
2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-e3905fc1-d4a2-447f-8375-c620fefef20d.png?width=284&height=378)
Key in your PIN and press Done.
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. You can get the PUK by calling customer services on 191 from a Vodafone mobile phone. If you're using a land line, you need to dial 03333 040 191. 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/7070225-f-a219533b-7e9b-462d-b02c-2bc2077a9c22.png?width=284&height=378)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-e3905fc1-d4a2-447f-8375-c620fefef20d.png?width=284&height=378)