![Sony Xperia 10 IV](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d20f8990-5f81-4264-95f8-4fb38865ff4b.png?width=150&height=320)
Sony Xperia 10 IV
Android 12.0
1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d34d3fc2-512d-4219-b138-c3f8bd7fa7ca.png?width=186&height=438)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5f2b44fa-057a-42e0-81f7-3d41c1f92303.png?width=186&height=438)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4b87baae-db17-469c-9843-2550269704ee.png?width=186&height=438)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-631bdb05-2f53-4048-81c0-d5aa14e3a1f7.png?width=186&height=438)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cecc4e2a-c1d1-4e39-995b-60b84c969736.png?width=186&height=438)
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-968c1436-09ff-4df8-b9d8-8c18623d790a.png?width=186&height=438)
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-cecc4e2a-c1d1-4e39-995b-60b84c969736.png?width=186&height=438)