Xiaomi Redmi Note 9
Android 10.0
Select help topic
1. Find "SIM cards & mobile networks"
Press Settings.
![](http://cdn.sp-selfservice.com/ml/7090822-f-bd4e6745-08b5-48fe-bbf3-d4bf270abd5f.png?width=206&height=446)
Press SIM cards & mobile networks.
![](http://cdn.sp-selfservice.com/ml/7090822-f-77aebb2b-19a6-4d4f-8235-fbc6afc74185.png?width=206&height=446)
2. Turn use of SIM on or off
Press the required SIM.
![](http://cdn.sp-selfservice.com/ml/7090822-f-f6fbeaca-b013-49e4-86eb-cac7163affdb.png?width=206&height=446)
Press the indicator next to "Turn on" to turn use of the SIM on or off.
![](http://cdn.sp-selfservice.com/ml/7090822-f-91205376-92ef-4c26-b4af-1318ba84eb6e.png?width=206&height=446)
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://cdn.sp-selfservice.com/ml/7090822-f-95e9f66a-3347-41bc-ac66-8285409b0679.png?width=206&height=446)
Press the Return key.
![](http://cdn.sp-selfservice.com/ml/7090822-f-91205376-92ef-4c26-b4af-1318ba84eb6e.png?width=206&height=446)
3. Select default SIM for voice calls
Press the required setting below "Default for calls".
![](http://cdn.sp-selfservice.com/ml/7090822-f-f6fbeaca-b013-49e4-86eb-cac7163affdb.png?width=206&height=446)
4. Select default SIM for mobile data
Press the required SIM below "Data card".
![](http://cdn.sp-selfservice.com/ml/7090822-f-f6fbeaca-b013-49e4-86eb-cac7163affdb.png?width=206&height=446)
5. Return to the home screen
Press the Home key to return to the home screen.
![](http://cdn.sp-selfservice.com/ml/7090822-f-f6fbeaca-b013-49e4-86eb-cac7163affdb.png?width=206&height=446)