![Samsung Galaxy A03s](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ef62aab4-d935-4f79-8491-109bc736d082.png?width=150&height=320)
Samsung Galaxy A03s
Android 11.0
1. Find "SIM card manager"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b6fb8fe9-b1f6-400f-a590-dacd7a666614.png?width=198&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-7a799c1d-4c6b-4308-b02a-ecf3fc0b2bee.png?width=198&height=440)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-07cd3922-12f6-41ac-8cdb-4ec2d09b8c4f.png?width=198&height=440)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a0d08143-a11d-438f-a243-9ee4b5d2070a.png?width=198&height=440)
2. Turn use of SIM on or off
Press the indicator next to the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f58ebdd9-8675-4c82-8571-00737a71469b.png?width=198&height=440)
Press OK to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cdbdd6e9-7ef7-4138-9380-e57619d71336.png?width=198&height=440)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f58ebdd9-8675-4c82-8571-00737a71469b.png?width=198&height=440)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9e0e2c74-44b2-42f5-98b1-eedbb142f455.png?width=198&height=440)
4. Select default SIM for text messaging
Press Messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f58ebdd9-8675-4c82-8571-00737a71469b.png?width=198&height=440)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0bc80c45-4a95-4593-97ce-c24905cb3d69.png?width=198&height=440)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f58ebdd9-8675-4c82-8571-00737a71469b.png?width=198&height=440)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4c47d08e-df79-415f-a651-0ddee471c79a.png?width=198&height=440)
6. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f58ebdd9-8675-4c82-8571-00737a71469b.png?width=198&height=440)