Switching your preferred SIM for text messages
With the dual sim feature of your device, you can easily switch between phone numbers when sending an SMS or MMS message.
1.
From the Settings app, tap Network & internet.
2.
Tap SIMs.
3.
Select a carrier or SIM card.
The labels you've chosen may differ from this tutorial, but the same steps should still apply.
4.
Tap SMS preference.
5.
Select your SIM you'd like to use for SMS and MMS messages.
6.
You've completed the steps!
