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-3c58a191-ef36-44df-ac40-5e762f4e7176.png?width=378&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-33e80bb5-24d6-4987-b372-9ae8f266ee47.png?width=378&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-45b836f3-ce5c-4888-97bd-f689f68d6679.png?width=378&height=456)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-805659ee-acab-49d3-8929-fad3b1044635.png?width=378&height=456)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-64b2f1b0-3f94-40eb-b911-51d3a1995592.png?width=378&height=456)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-63c56c7e-e24e-4071-ab58-28740d10dc15.png?width=378&height=456)
If you turn off use of the SIM, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7370d7ba-5d4b-4a90-a7d7-11a88b917687.png?width=378&height=456)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-63c56c7e-e24e-4071-ab58-28740d10dc15.png?width=378&height=456)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-64b2f1b0-3f94-40eb-b911-51d3a1995592.png?width=378&height=456)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-05891da2-73b4-4457-8970-ca0ca007638a.png?width=378&height=456)
4. Select default SIM for text messaging
Press Messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-64b2f1b0-3f94-40eb-b911-51d3a1995592.png?width=378&height=456)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ca2a6ac1-2c8c-49cd-94a3-8a2491d1b144.png?width=378&height=456)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-64b2f1b0-3f94-40eb-b911-51d3a1995592.png?width=378&height=456)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2d335077-b97f-47b0-9431-7397377f1e9a.png?width=378&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-64b2f1b0-3f94-40eb-b911-51d3a1995592.png?width=378&height=456)