![Apple iPad Air (2020)](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3c3df7ab-9163-4397-aa5b-a08faa240394.png?width=150&height=320)
Apple iPad Air (2020)
iPadOS 15.3
1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e68349bb-3302-4931-b3c2-12b9caccb707.png?width=304&height=436)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cbfaf665-75e5-47dd-81e4-82d3d0859fcb.png?width=304&height=436)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5cd5b931-adc8-4f48-b05e-eb0ccbca4e90.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-bcf5e8f3-51b3-4b7c-9aaf-19680b1e1e9d.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-594eb4cb-4264-4421-ba81-ba457ff145f0.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-bcf5e8f3-51b3-4b7c-9aaf-19680b1e1e9d.png?width=304&height=436)