1. Find "SIM card & mobile data"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a92c050c-dd0a-4b29-81f0-ae33f5cc412d.png?width=202&height=450)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-837bfca8-e594-489c-b218-dea0792a66ce.png?width=202&height=450)
Press SIM card & mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6a32b7c8-87ef-445c-b343-e1643d62e46d.png?width=202&height=450)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-57a7ea13-da26-4aae-be91-7d24488bddd2.png?width=202&height=450)
Press the indicator below "SIM Info & Settings" to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cbac6ce2-2415-4738-8a7e-6fa6d22cd41d.png?width=202&height=450)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cbac6ce2-2415-4738-8a7e-6fa6d22cd41d.png?width=202&height=450)
3. Select default SIM for voice calls
Press Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-57a7ea13-da26-4aae-be91-7d24488bddd2.png?width=202&height=450)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-367b3fd3-04d2-4648-9f13-0a5ad5690f9c.png?width=202&height=450)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-367b3fd3-04d2-4648-9f13-0a5ad5690f9c.png?width=202&height=450)
4. Select default SIM for mobile data
Press Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-57a7ea13-da26-4aae-be91-7d24488bddd2.png?width=202&height=450)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5ed8b228-7bfa-4fad-b443-38c6a9602079.png?width=202&height=450)
If you change SIM, press Switch.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3edd1682-4c75-4f0d-add6-2f1eed923e60.png?width=202&height=450)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5ed8b228-7bfa-4fad-b443-38c6a9602079.png?width=202&height=450)
5. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-57a7ea13-da26-4aae-be91-7d24488bddd2.png?width=202&height=450)