![Apple iPad Air (2020)](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-89c7ea4f-4aa4-4b3c-895c-92e18a9be4d3.png?width=150&height=320)
Apple iPad Air (2020)
iPadOS 17
1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-54f2c5d9-e5cb-4a44-a189-24280da1be51.png?width=304&height=436)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a4e43418-d3e7-49fb-af95-4c05addd06a7.png?width=304&height=436)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-04e69c2b-8ae6-4a05-acaf-2620741bab96.png?width=304&height=436)
2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-90550743-53a9-477b-9a21-f95b7bdb00eb.png?width=304&height=436)
Key in your PIN and press Done.
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-77624d09-ae4c-4094-83b4-ef9975c90dac.png?width=304&height=436)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-90550743-53a9-477b-9a21-f95b7bdb00eb.png?width=304&height=436)