![OPPO A72](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a84b7dd2-fee1-4d44-8e6b-3d456654fb19.png?width=150&height=320)
OPPO A72
Android 10.0
1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-facf3558-7b28-4c5f-88a4-667a7893c56e.png?width=202&height=448)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4046c4ee-029f-4a97-84b5-3fb11213af3f.png?width=202&height=448)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bea3c037-7a5d-419d-96fb-a31051940ebf.png?width=202&height=448)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-46875af2-b6cc-4ac0-ac02-0165f2facb85.png?width=202&height=448)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM Card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1a63be15-8213-404b-b20c-65f1c5022b20.png?width=202&height=448)
Key in your PIN and press OK.
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-09e80cd6-c3a6-45f1-bb93-1cddc4579b97.png?width=202&height=448)
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-1a63be15-8213-404b-b20c-65f1c5022b20.png?width=202&height=448)