![Apple iPad Air (2020)](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d655e0f2-e95f-4b22-80e7-d4ef3f873db9.png?width=150&height=320)
Apple iPad Air (2020)
iPadOS 16.2
1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3f100e9f-4141-485d-89b7-8233af07bdf3.png?width=304&height=436)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2e5d407a-d465-4e19-ac6b-73039a734fc9.png?width=304&height=436)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-43896286-d602-44f6-a576-e1cbf3f747fe.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-bbf79ccf-ddee-4ea6-9ee8-c7b277f6a83f.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-45700b22-8db9-4a75-96d9-fb751b1cc58b.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-bbf79ccf-ddee-4ea6-9ee8-c7b277f6a83f.png?width=304&height=436)