1. Find "SIM card manager"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-01d5fbfe-5fa8-4abd-97e8-493b2f31eade.png?width=198&height=410)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40a752dd-9cf6-4172-9c0b-127812b71f66.png?width=198&height=410)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9065f85a-1ff8-4b61-be30-4f95813dc8bf.png?width=198&height=410)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-93adb8c0-27d9-49ef-b6b3-ced84bad6599.png?width=198&height=410)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-529ec23f-3c57-450c-8fbe-0f9f5d9a300b.png?width=198&height=410)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d1f107ae-a39f-4bff-b0e4-39c72877fb40.png?width=198&height=410)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d1f107ae-a39f-4bff-b0e4-39c72877fb40.png?width=198&height=410)
3. Select default SIM for calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-529ec23f-3c57-450c-8fbe-0f9f5d9a300b.png?width=198&height=410)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bf491ded-14cd-40ba-8b9a-9b20e60d744a.png?width=198&height=410)
4. Select default SIM for text messaging
Press Text messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-529ec23f-3c57-450c-8fbe-0f9f5d9a300b.png?width=198&height=410)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6b430d1b-c597-4c5d-b7a4-d0e14045dc05.png?width=198&height=410)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-529ec23f-3c57-450c-8fbe-0f9f5d9a300b.png?width=198&height=410)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bf4504b1-3506-4f03-9d3d-b6a8c5d9e579.png?width=198&height=410)
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-529ec23f-3c57-450c-8fbe-0f9f5d9a300b.png?width=198&height=410)