![Xiaomi Redmi A3](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-1a74073b-122f-496c-9b67-584a8bd69eea.png?width=150&height=320)
Xiaomi Redmi A3
Android 14
1. Find "More security and privacy"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-0606367f-81c8-4e3f-97bb-d3411a7a4583.png?width=194&height=444)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-1c84b4db-0262-475d-aa2f-2590b4804d24.png?width=194&height=444)
Press Security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-0f3ad244-f11b-4d97-9e0f-08c524b92474.png?width=194&height=444)
Press More security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-5fbfe58c-cf50-4ff0-8aa8-795b1c36088d.png?width=194&height=444)
2. Turn use of PIN on or off
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-0d13b09b-727d-436e-ad5a-0ffef94a5225.png?width=194&height=444)
Press the indicator next to "Lock SIM" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-554b41f9-182b-4591-a6de-1ab3d33f7a65.png?width=194&height=444)
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/7230524-f-47503850-1ff6-4126-9789-6cde0f97c20b.png?width=194&height=444)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7230524-f-554b41f9-182b-4591-a6de-1ab3d33f7a65.png?width=194&height=444)