1. Find "SIM cards & mobile networks"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-f713e7eb-7204-4be0-a740-9ebb8930aaea.png?width=206&height=456)
Press SIM cards & mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-8fccd149-39db-4c41-9926-624e4dc7b717.png?width=206&height=456)
2. Turn use of price plan on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-483657fe-741d-402e-bc8a-590db9b1a396.png?width=206&height=456)
Press the indicator next to "Turn on" to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-bf4e7dfd-a19d-4279-833e-8e15b57c6916.png?width=206&height=456)
If you turn off use of the SIM, press OK.
You can only turn off use the SIM if it has not been selected as the default SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-a589052a-d8d1-4907-9f3d-5b52d2ba5bed.png?width=206&height=456)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-bf4e7dfd-a19d-4279-833e-8e15b57c6916.png?width=206&height=456)
3. Select default SIM for voice calls
Press the required setting below "Default for calls".
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-483657fe-741d-402e-bc8a-590db9b1a396.png?width=206&height=456)
4. Select default SIM for mobile data
Press the required SIM below "Data SIM".
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-483657fe-741d-402e-bc8a-590db9b1a396.png?width=206&height=456)
5. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7110324-f-483657fe-741d-402e-bc8a-590db9b1a396.png?width=206&height=456)