How to manage & operate your dual-sim Xiaomi Redmi phone viz Internet data, Calls , SMS

1. What are the mobile networks that are supported by the 2 SIM card slots ?
While both card slots accept SIM cards with data connectivity, only the left slot supports 3G mobile data (WCDMA/GSM) while the right slot is rated for 2G data connectivity (GSM). And, for your information, you need normal sized SIM cards for the 2 slots.
2. What mode does the dual-sim work in ?
The Redmi supports dual-standby, which means both SIM cards are active to receive calls and text messages. But when you’re using SIM 1 and another person is calling on SIM 2, he/she will hear the message “not reachable, try again later”or the call goes straight to the voice mailbox.
One workaround for this problem is to forward calls between these 2 numbers. When SIM 1 is engaged, the calls to SIM2 will be forwarded to SIM1 and notify you that there’s an incoming call.
3. How do I know the signal strengths of the 2 mobile networks ?
When you insert 2 SIM cards into your Redmi, you’ll see 2 signal bars on the notification panel. The first one is for the first SIM slot, and the second one is for the second SIM slot.
4. How do I disable a SIM card temporarily ?
  • On your phone, go to Settings > General settings > SIM management.
  • Tap the SIM card you want to disable.
  • Slide the Enable switch to the left.
5. How do I edit the display name of both the SIM cards ?
  • On your phone, go to Settings > General settings > SIM management.
  • Tap the SIM card you want to change the display name.
  • Tap Edit SIM name to change the display name.
6. How do I select which SIM card to use when making a call ?
On the dial pad, you can choose which SIM card you want to use to make a call.
7. How do I know for which number (or SIM card) when I receive an incoming call ?
On the Incoming call screen, you can see the SIM card number (either 1 or 2). Also, there are labels of 1 or 2 on the call log entries.
8. How to filter to show only one particular SIM card entries in the call logs ?
  • On the Phone app, go to Menu > Filter.
  • Tap the SIM calls you want to display.
Note: As soon as you exit the Phone app, the Call log display will be reset to show all calls.
How do I select which mobile network to use when sending/replying a text message ?
At the bottom of the Compose message screen, you’ll get to choose either send this message using SIM 1 or SIM 2.
How do I know for which SIM card when I receive an incoming text message ?
On the message Popup notification, there’s either number 1 or 2 to indicate the SIM card. And on the Messagesscreen,’re all messages are labeled with either 1 or 2 to show you which SIM that they’re belong to.
How do I choose a specific SIM card to use for mobile data connection ?
  • On your phone, go to Settings > General settings > SIM management.
  • Tap Data connection.
  • Slide the Enable switch to the right.
  • Tap to select the SIM card you want to use for mobile data connection.
Note: The 2nd SIM card slot only supports 2G connection.
How do I view and edit the 2 SIM card contacts ?
Please refer to this guide.
How do I forward calls from SIM 1 to SIM 2 ?
  • On the Phone app, go to Settings > Call settings > Call forwarding.
  • Tap the SIM 1 option.
  • Tap Forward when busyForward when unanswered and Forward when unreachable options to enter the SIM 2 number.
Note: The steps here were written for MIUI V5, based on Android 4.2.2 on a Redmi (HM1W). If you’re having a different model of Redmi or other version of MIUI/Android, there’s a possibility that the steps and screenshots will be different

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