1. Find "SIM manager"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-2ed196e7-8a61-4b6b-8e56-42ec52aa7af5.png?width=212&height=458)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-31b1bafa-bf45-4431-9f5d-3fd90f91a6ea.png?width=212&height=458)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-37d55fe2-9cb8-4ecc-bbdb-2d8115ece148.png?width=212&height=458)
Press SIM manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-9e4daa42-173c-49f2-8c0b-603e76adcf4c.png?width=212&height=458)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4a617145-8f9b-49c9-8235-ba8037a983e1.png?width=212&height=458)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-c31019ad-356d-4511-81ca-c39aaf08352b.png?width=212&height=458)
If you turn on use of the SIM, press Turn on.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-9310d737-ee8e-4e0f-8722-437bf7a4e7ae.png?width=212&height=458)
If you turn off use of the SIM, press Turn off.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-0894fc5d-e83d-4cfb-90b7-ea5b037eabc9.png?width=212&height=458)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-c31019ad-356d-4511-81ca-c39aaf08352b.png?width=212&height=458)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4a617145-8f9b-49c9-8235-ba8037a983e1.png?width=212&height=458)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-294b9fa0-1f91-4cc7-bab0-a145964838d4.png?width=212&height=458)
4. Select default SIM for text messaging
Press Messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4a617145-8f9b-49c9-8235-ba8037a983e1.png?width=212&height=458)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4f887c86-71d8-4a4d-9dca-d54c5f2d15a2.png?width=212&height=458)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4a617145-8f9b-49c9-8235-ba8037a983e1.png?width=212&height=458)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-a54327c8-b422-4a11-9bc5-b2bf465b71c8.png?width=212&height=458)
6. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7210823-f-4a617145-8f9b-49c9-8235-ba8037a983e1.png?width=212&height=458)