![Apple iPad Pro 12.9](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0e24d6c6-e545-445e-95da-ee3a309dd0dd.png?width=150&height=320)
Apple iPad Pro 12.9
iPadOS 15.3
1. Find "SIM PIN"
Press Settings.
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Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b39922ed-1cb7-4914-885e-2e25b4ad8539.png?width=310&height=412)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0ef2289d-c448-49e4-92af-36d59436bc0d.png?width=310&height=412)
2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
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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-9da4fa4d-ec56-4313-9998-5ff5eb2eb1e1.png?width=310&height=412)
3. Return to the home screen
Press the Home key to return to the home screen.
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