![Xiaomi Redmi Note 9T](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-342a1545-f3b3-4459-8ed4-2793831e7e47.png?width=150&height=320)
Xiaomi Redmi Note 9T
Android 10.0
1. Find "Change SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bd4e6745-08b5-48fe-bbf3-d4bf270abd5f.png?width=206&height=446)
Press Passwords & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-46160e2c-209d-4a34-85c2-2c705b4ec61a.png?width=206&height=446)
Press Privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2e4f7066-23bf-4c41-8704-9bb1f5ca7fdc.png?width=206&height=446)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b74a8bba-dab6-4793-9f43-21f37aaf0d97.png?width=206&height=446)
Press Change SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-af0f4ffd-8644-40d7-944d-5a6fcd42ffe7.png?width=206&height=446)
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-a769a008-ec33-4e3f-ab41-e505c48ff99c.png?width=206&height=446)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e4449c32-0859-4ecb-b4ff-1aa3512d0af7.png?width=206&height=446)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d3a7d674-61ae-4ae1-9493-b914eea54c21.png?width=206&height=446)
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-af0f4ffd-8644-40d7-944d-5a6fcd42ffe7.png?width=206&height=446)