![Xiaomi 11T Pro](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9ae33991-2c59-4051-90d0-9e149a3c4a8d.png?width=150&height=320)
Xiaomi 11T Pro
Android 11.0
1. Find "Privacy"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4c607ef7-e9d4-40f7-a6d9-f9c773d05715.png?width=202&height=452)
Press Passwords & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f0e8b08d-4de4-4481-b5ac-2b4e0a6776af.png?width=202&height=452)
Press Privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3624ea42-a937-4767-9698-15dfb022fe6d.png?width=202&height=452)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d096d552-dd8f-4405-99ba-5df98b3e301d.png?width=202&height=452)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-34fab2e1-f381-474d-b3e8-ace04ce9945f.png?width=202&height=452)
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. 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/7151223-f-1cd7a84e-c65e-48fa-9489-27b796026806.png?width=202&height=452)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-34fab2e1-f381-474d-b3e8-ace04ce9945f.png?width=202&height=452)