![OPPO A54 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f9044766-6474-4f7c-b5d4-dd71025deeb4.png?width=150&height=320)
OPPO A54 5G
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-baf8c3ff-5606-4a2d-b191-bbcae3927f9b.png?width=198&height=444)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-88f9f90b-6a2b-4336-b863-cc7847bbe91a.png?width=198&height=444)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4d60e8c6-7884-4479-b4a6-f482fcef2d33.png?width=198&height=444)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a6073149-5e31-471e-aeb7-477248752e6e.png?width=198&height=444)
2. Change PIN
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-6548281f-0002-4b7a-a2c1-b424bf15ac60.png?width=198&height=444)
Press Change SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2842ac92-e402-4cba-8dd0-4cd842be577f.png?width=198&height=444)
Key in your current 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-d4c79b9a-e6bb-43bb-acad-c1c198e223e2.png?width=198&height=444)
Key in a new four-digit PIN and press the confirm icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-eeaf321b-ecc4-49c5-b05f-3c8e9d128bea.png?width=198&height=444)
Key in the new PIN again and press the confirm icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d0e424ec-ece1-4848-9cea-fe3bb34bae70.png?width=198&height=444)
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-2842ac92-e402-4cba-8dd0-4cd842be577f.png?width=198&height=444)