![Xiaomi Mi 10T Pro](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c01f3d87-2e05-47fd-bf66-7cd6bba72892.png?width=150&height=320)
Xiaomi Mi 10T Pro
Android 10.0
1. Find "SIM cards & mobile networks"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a73dceae-999c-4f32-ae61-73a2a0ca2a44.png?width=200&height=448)
Press SIM cards & mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0d7b4a67-6c22-498b-a840-8e1f02e99552.png?width=200&height=448)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fca91642-0c27-4418-9e3c-e0f0c6904dab.png?width=200&height=448)
Press the indicator next to "Turn on" to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3ee94a72-2f02-49e1-8edd-1bbca349f805.png?width=200&height=448)
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/7151223-f-2acd577f-582e-4327-a415-e9795a27d647.png?width=200&height=448)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3ee94a72-2f02-49e1-8edd-1bbca349f805.png?width=200&height=448)
3. Select default SIM for voice calls
Press the required setting below "Default for calls".
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fca91642-0c27-4418-9e3c-e0f0c6904dab.png?width=200&height=448)
4. Select default SIM for mobile data
Press the required SIM below "Data card".
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fca91642-0c27-4418-9e3c-e0f0c6904dab.png?width=200&height=448)
5. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fca91642-0c27-4418-9e3c-e0f0c6904dab.png?width=200&height=448)