Xiaomi 5 Card Groove working mode

Xiaomi 5 full Netcom card slot does not distinguish between the main pair,
Support China Mobile, Unicom, telecom 2g/3g/4g network.
Use the details with the operator:
1, when a SIM card for the telecom card, the other SIM card for mobile or Unicom card, is selected as the Internet Telecom Card can use 4G, 3G, 2G Network, another mobile or Unicom card for GSM (2G) network; the mobile or Unicom card selected for the internet can use 4G, 3G, 2G networks, Another telecom card for 2G network
2, when the two SIM cards are mobile or Unicom, was selected as the Internet card can use 4G, 3G, 2G Network, the other card for mobile card, only support GSM (2G) network, the other card for Unicom, can support WCDMA and GSM (3G, 2G) network only support calls;
3, when the two SIM card is a telecommunications card, is selected as the Internet card can use 4G, 3G, 2G Network, the other card cannot register the network (no signal).

Xiaomi 5 Card Groove working mode