![Sony Xperia 10 III](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-345816b3-cf05-40bc-b827-80e0393ebcd8.png?width=150&height=320)
Sony Xperia 10 III
Android 11.0
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-626cff55-8a9c-4e74-810c-46fe701a36bd.png?width=186&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a2dbf1a5-9c21-4b2d-bf03-306dc60bb07c.png?width=186&height=434)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f7377924-3f9e-4340-88bf-f108d759fb89.png?width=186&height=434)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3df19d08-cb71-4e1b-8654-2dd8a11da8e7.png?width=186&height=434)
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-d2c8e53a-35db-45d8-a2e1-5017c350f4e2.png?width=186&height=434)
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-f36dd193-43db-4cf5-8a09-c48c206d45bb.png?width=186&height=434)
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-d2c8e53a-35db-45d8-a2e1-5017c350f4e2.png?width=186&height=434)