4. Tap OK.
Edit SIM card number
1. Go to Settings > SIM cards & mobile networks .
2. Tap a phone number to set SIM card.
3. Tap Edit SIM card number to change the number.
4. Tap OK.
Advanced settings
Use mobile data during VoLTE calls on the secondary SIM
During VoLTE calls, the phone connects to a mobile data network with the sec-
ondary SIM.
Note
You can set the feature when you insert two SIM cards.
1. Go to Settings > SIM cards & mobile networks > Advanced settings .
2. Tap
to enable Use mobile data during VoLTE calls on the secondary
SIM.
Set Data roaming
When roaming, you can connect to data services.
1. Go to Settings > SIM cards & mobile networks > Advanced settings .
2. Tap Data roaming .
3. Tap International roaming to select data roaming frequency.
Diagnose mobile network
Test connection for networking issues.
1. Go to Settings > SIM cards & mobile networks > Advanced settings .
2. Tap Mobile network diagnostics to see connection speed.
3. Tap Test network .
Learn eSIM card
eSIM card is a virtual SIM card that occupies no space on the SIM card slot. The
function of an eSIM card is similar to a physical SIM card. You can also make
calls, send messages, and use mobile data.
24
Summary of Contents for 12T Pro
Page 1: ...Xiaomi 12T Pro User Guide ...