![OPPO Find X3 Lite](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-512f3ad2-b024-4c17-977e-62f90b349b41.png?width=150&height=320)
OPPO Find X3 Lite
Android 11.0
1. Find "SIM card & mobile data"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-39442f38-08bb-4e83-9c2d-b0470f72b99d.png?width=202&height=448)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f0b654c7-d647-40e7-86e9-f2e39c869f16.png?width=202&height=448)
Press SIM card & mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c3e4c69e-57b7-43e7-85ce-c1f3ece31eeb.png?width=202&height=448)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d46a0654-6e7c-4325-b9f0-f6ab6c920155.png?width=202&height=448)
Press the indicator below "SIM Info & Settings" to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0040916c-26f7-4a19-a145-964f27022db9.png?width=202&height=448)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0040916c-26f7-4a19-a145-964f27022db9.png?width=202&height=448)
3. Select default SIM for voice calls
Press Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d46a0654-6e7c-4325-b9f0-f6ab6c920155.png?width=202&height=448)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-21a99919-277a-4961-a8a9-89d13482f0a2.png?width=202&height=448)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed501039-83c3-47a5-a571-0d0ed41ef460.png?width=202&height=448)
4. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d46a0654-6e7c-4325-b9f0-f6ab6c920155.png?width=202&height=448)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed501039-83c3-47a5-a571-0d0ed41ef460.png?width=202&height=448)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed501039-83c3-47a5-a571-0d0ed41ef460.png?width=202&height=448)
5. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d46a0654-6e7c-4325-b9f0-f6ab6c920155.png?width=202&height=448)