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-d0ceff7d-4059-460e-852c-3f907c304854.png?width=190&height=394)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e956f5b6-0b42-4f54-bebe-34b5220b4001.png?width=190&height=394)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c27e3349-d49e-43bd-a604-a7f435dd2da7.png?width=190&height=394)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-02806ebd-c3de-4a47-a66e-c65cd14d7587.png?width=190&height=394)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38e15f27-564c-49dc-9908-6d0397b1981f.png?width=190&height=394)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0c89ccbd-c4fb-41e5-88e1-ce23141efa02.png?width=190&height=394)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0c89ccbd-c4fb-41e5-88e1-ce23141efa02.png?width=190&height=394)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38e15f27-564c-49dc-9908-6d0397b1981f.png?width=190&height=394)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38a3229b-11ea-48f2-b6fc-bfd325dda06f.png?width=190&height=394)
4. Select default SIM for text messaging
Press Messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38e15f27-564c-49dc-9908-6d0397b1981f.png?width=190&height=394)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-eadd4f1b-d198-48e8-9aa0-47b595c56d98.png?width=190&height=394)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38e15f27-564c-49dc-9908-6d0397b1981f.png?width=190&height=394)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-41549c13-2ec0-4fdd-9bf5-ba0165d7b44f.png?width=190&height=394)
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-38e15f27-564c-49dc-9908-6d0397b1981f.png?width=190&height=394)