![Xiaomi 12](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-04e35542-04f5-4aa8-ad99-7b3a203eb4f2.png?width=150&height=320)
Xiaomi 12
Android 12.0
1. Find "Change SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-359f4746-f5e5-4414-a314-b86cd9e0495f.png?width=206&height=456)
Press Passwords & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4aa4d602-b5b1-4ffa-a0f2-5adcfffc7044.png?width=206&height=456)
Press Privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8aa026b5-82b1-4b79-a3d4-e66fecb4ce17.png?width=206&height=456)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ba83ba5f-510b-4da5-b853-f5b64750952f.png?width=206&height=456)
Press Change SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8553e395-ddb9-4e70-827d-65c93ea0006d.png?width=206&height=456)
2. Change PIN
Key in your current 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-ab57f6bf-f549-496e-a012-edcb3a30a542.png?width=206&height=456)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bd569599-458c-4b49-bdc2-3b48d13d9431.png?width=206&height=456)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-61d804dd-eb58-4eb6-877e-abb3c5dac4b3.png?width=206&height=456)
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-8553e395-ddb9-4e70-827d-65c93ea0006d.png?width=206&height=456)