![TCL 306](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ea2b6f96-4582-4dd6-9b00-74547509a6df.png?width=150&height=320)
TCL 306
Android 12.0
1. Find "SIM card & mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1f21d219-7452-4c2f-b44c-43e33bce042b.png?width=198&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f31c501c-3eab-44a8-a48a-37e10f387c6a.png?width=198&height=440)
Press SIM card & mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-69a0abb0-be78-4e28-8938-88c30bb1b077.png?width=198&height=440)
2. Turn use of SIM on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a93ea66e-d0fa-4154-a7b2-0f44397738a4.png?width=198&height=440)
Press the indicator to turn use of the SIM on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5a686157-cde5-4db3-8ac7-4cbaf8695c48.png?width=198&height=440)
Press the Return key.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5a686157-cde5-4db3-8ac7-4cbaf8695c48.png?width=198&height=440)
3. Select default SIM for voice calls
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a93ea66e-d0fa-4154-a7b2-0f44397738a4.png?width=198&height=440)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a07a0c54-4a96-4fc0-a531-9254a0f1da64.png?width=198&height=440)
4. Select default SIM for text messaging
Press SMS messages.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a93ea66e-d0fa-4154-a7b2-0f44397738a4.png?width=198&height=440)
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e57b23d6-0fd4-4523-943d-e347c3557a3e.png?width=198&height=440)
5. Select default SIM for mobile data
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a93ea66e-d0fa-4154-a7b2-0f44397738a4.png?width=198&height=440)
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-07811949-7816-4221-b48b-94e90b44b81d.png?width=198&height=440)
6. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a93ea66e-d0fa-4154-a7b2-0f44397738a4.png?width=198&height=440)