![Apple iPad Air (2019)](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cc758371-1aae-4627-8c35-b327dabce186.png?width=150&height=320)
Apple iPad Air (2019)
iPadOS 16.2
1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-008052c4-dd44-419a-b32f-2a7deaba94bd.png?width=306&height=408)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-6d045661-2190-4629-a0e2-0c78f0162fe5.png?width=306&height=408)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-dbfb167d-cc17-4fba-89d3-717598f4c7f8.png?width=306&height=408)
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-5119859e-c2d6-43ce-b65a-ecd6960f8f6b.png?width=306&height=408)
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-47c6e40f-5439-4e64-8390-365b81fc352d.png?width=306&height=408)
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-5119859e-c2d6-43ce-b65a-ecd6960f8f6b.png?width=306&height=408)