![OPPO Find X3 Pro](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aaadb65a-2736-4e81-b398-c1073e9ef4f9.png?width=150&height=320)
OPPO Find X3 Pro
Android 11.0
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-fd5837f8-3cf0-4ce2-a360-c5be28b802f4.png?width=204&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b85f0820-be0f-4489-8896-135579f79d09.png?width=204&height=454)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b173c98e-6cc6-4be5-b7bb-4cf2282afa58.png?width=204&height=454)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-93af688d-7cd1-45d0-a4ac-f4f3173a4c1f.png?width=204&height=454)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-79cf04b5-3ee9-4c59-832d-77ccf0c85219.png?width=204&height=454)
Press the indicator next to "Lock SIM Card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f906192c-662e-4495-93e6-078c0bb0163b.png?width=204&height=454)
Key in your PIN and press the confirm icon.
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-a113f94f-0945-4f81-a91d-9854e1469ee4.png?width=204&height=454)
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-f906192c-662e-4495-93e6-078c0bb0163b.png?width=204&height=454)