![Samsung Galaxy A71](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cb0ba8a2-5251-4612-8313-671b95372941.png?width=150&height=320)
Samsung Galaxy A71
Android 10.0
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-f9a27398-50e0-4249-b93b-c0c70a2f7373.png?width=204&height=452)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-948bf70b-c752-4c48-8134-2495e9fdf7c6.png?width=204&height=452)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2973d27e-6644-4e11-b781-824eb7caf239.png?width=204&height=452)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-35d3d2a7-4357-47dd-9cf3-885a5fcd42d6.png?width=204&height=452)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa523223-006c-4c17-b3c4-da10852a0bf1.png?width=204&height=452)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a4487980-3e5b-4d4b-9bd2-01435d3f9cc2.png?width=204&height=452)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a4487980-3e5b-4d4b-9bd2-01435d3f9cc2.png?width=204&height=452)
3. Select default SIM for calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa523223-006c-4c17-b3c4-da10852a0bf1.png?width=204&height=452)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2535e17b-7be3-4503-98f4-dba7b9c3e99c.png?width=204&height=452)
4. Select default SIM for text messaging
Press Text messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa523223-006c-4c17-b3c4-da10852a0bf1.png?width=204&height=452)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-af204c88-bb95-4c80-b308-6ef1a0153cf9.png?width=204&height=452)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa523223-006c-4c17-b3c4-da10852a0bf1.png?width=204&height=452)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f4203ab4-4379-4d47-82cf-5dac78cfcf88.png?width=204&height=452)
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-aa523223-006c-4c17-b3c4-da10852a0bf1.png?width=204&height=452)