![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 "Change SIM PIN"
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)
Press Change SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cecc4e2a-c1d1-4e39-995b-60b84c969736.png?width=186&height=438)
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-a7b5a40c-f3f1-4824-af95-98b8e614cc67.png?width=186&height=438)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d88519b4-8133-436b-9efc-df21a682e2cb.png?width=186&height=438)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-47f0da9b-4e84-47e5-a933-014e0d5498ea.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)