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Connecting to Networks 
Connecting to Mobile Networks 
Manage the nano-SIM Cards 
When two nano-SIM cards are installed, you can turn off one of 
them, or choose the default card for calling and data. 
To turn on or off a card: 
1.  Open the app list and touch Settings > Network & 
Internet > SIM cards. 
2.  Touch the on/off switch next to a card. 
  NOTE:   
You can touch a card name to edit it. 
To set the default card for calling and data connection: 
1.  Open the app list and touch Settings > Network & 
Internet > SIM cards. 
2.  Below Preferred SIM for, touch the Mobile data (card 
name) switch on or off to set a card for data connection. You 
can also touch Default SIM for calling and select a card as 
the default.