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-1734b561-14aa-401e-8718-e2e7fd816fed.png?width=204&height=452)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2afd2614-7863-48d4-8c66-f0f992530803.png?width=204&height=452)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8d6b5534-d922-4a2b-830a-80ef9aaa0be9.png?width=204&height=452)
Press SIM card manager.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-50250e63-6c45-4e61-a96a-4f6b44d9de65.png?width=204&height=452)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a56a6335-1dbd-4c9b-83e2-93e2fa27e5b2.png?width=204&height=452)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-14d3a16b-c084-46e6-a1ea-9dcb65d94c69.png?width=204&height=452)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-14d3a16b-c084-46e6-a1ea-9dcb65d94c69.png?width=204&height=452)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a56a6335-1dbd-4c9b-83e2-93e2fa27e5b2.png?width=204&height=452)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-34ef1534-b0f2-451b-bcc4-7cdeb30e7184.png?width=204&height=452)
4. Select default SIM for text messaging
Press Text messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a56a6335-1dbd-4c9b-83e2-93e2fa27e5b2.png?width=204&height=452)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-75c292f8-f4e5-4c11-a0ea-606945e1c298.png?width=204&height=452)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a56a6335-1dbd-4c9b-83e2-93e2fa27e5b2.png?width=204&height=452)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7737109b-997b-4800-b484-ed5d251b6ae3.png?width=204&height=452)
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-a56a6335-1dbd-4c9b-83e2-93e2fa27e5b2.png?width=204&height=452)