Choosing which nano SIM card to connect to the 3G network

When you have two nano SIM cards inserted on your phone, only one card can connect to the 3G network. The other card will connect to the 2G network only. You can set which card you want to connect to the 3G network.

1. Go to Settings.
2. Tap Mobile networks.
3. Tap 3G service > Enable 3G, and then choose the card you want to connect to the 3G network.