1. Find "SIM card manager"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4f73f480-9f98-4a94-8b07-6a2eb0b3b093.png?width=206&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-77d72a60-0d86-4165-85a3-2b12fca4ad63.png?width=206&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1698813e-d19c-42d2-aabe-038a76d1a048.png?width=206&height=456)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-abc4fdbe-bf8f-45d1-9667-4d84f238fb90.png?width=206&height=456)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a96b1f49-090a-4c45-a6b2-bb94dc0dd258.png?width=206&height=456)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6fc419d0-cd66-4572-85f5-f16ff03b3ae1.png?width=206&height=456)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6fc419d0-cd66-4572-85f5-f16ff03b3ae1.png?width=206&height=456)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a96b1f49-090a-4c45-a6b2-bb94dc0dd258.png?width=206&height=456)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-488cbbfa-f262-4953-b394-8121498e0662.png?width=206&height=456)
4. Select default SIM for text messaging
Press Messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a96b1f49-090a-4c45-a6b2-bb94dc0dd258.png?width=206&height=456)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-dd307c39-4d76-49d5-a5b0-b99b1ca43d8d.png?width=206&height=456)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a96b1f49-090a-4c45-a6b2-bb94dc0dd258.png?width=206&height=456)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-44afe0d7-eaee-4e13-a7f1-43f1c7c803f7.png?width=206&height=456)
6. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a96b1f49-090a-4c45-a6b2-bb94dc0dd258.png?width=206&height=456)