![OPPO A57 4G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ccc1f389-7e5c-4ef2-86b2-dac3129e8544.png?width=150&height=320)
OPPO A57 4G
Android 12.0
1. Find "FDN list"
Press the phone icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9a7d7d49-1709-4d0b-a490-fcda21ff950e.png?width=200&height=446)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a9aac45e-7970-451e-be6a-d40ab4116311.png?width=200&height=446)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-309f902f-a0fa-435f-b67f-8e108b0fc885.png?width=200&height=446)
Press Calling accounts.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-11399575-88fb-4531-9bff-d90b38e7f797.png?width=200&height=446)
Press Advanced settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e57667a5-82ff-4b88-87b6-d9047f70082e.png?width=200&height=446)
Press Fixed dialling numbers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-004280e7-3d8d-45b8-9896-aaadb4e13202.png?width=200&height=446)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1f6251a3-fe8f-4964-905a-332f0f13dba6.png?width=200&height=446)
Press FDN list.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b5c0bf39-aa3f-4f34-8ad4-024aa2950a10.png?width=200&height=446)
2. Add fixed numbers
Press the add icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-eba5a477-c62f-40ee-8750-5a3cf56178aa.png?width=200&height=446)
Press Add manually.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-7a3845e9-e442-4418-aac9-275f38821082.png?width=200&height=446)
Press Name and key in the required name.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-92f8096c-b2c1-4496-a639-6220a9d63dee.png?width=200&height=446)
Press Number and key in the required phone number.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-da33aee9-906c-4cf9-b790-94a895b6875a.png?width=200&height=446)
Press the confirm icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-00ea1d98-f0d8-4028-8de8-d0aa98f97a36.png?width=200&height=446)
Press PIN2 and key in your PIN2. The default PIN2 is 1111.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-962db55f-70d5-4320-a34d-e687cc302c38.png?width=200&height=446)
1111
Press the confirm icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c66d3a0d-0ac2-4d3a-af58-48fc8e69565e.png?width=200&height=446)
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-a5b61b31-b648-4c6f-9280-803458596e69.png?width=200&height=446)