Switching between SIM-Xiaomi smartphones seem to be a simple task, but many users face non-obvious nuances: from incorrect mobile Internet to sudden failures in the network. SIM It shares space with a microSD card, and in this article, we'll look at all the ways you can switch, from basic to hidden functions. MIUI, Also, we will explain how to avoid typical errors when setting up.
It’s important to understand that the algorithm depends on the firmware version (MIUI 12/13/14), the phone model (e.g. Redmi Note 12 Pro+ or POCO X5 have different interfaces), and even the carrier, we’ve compiled universal instructions that will work for most devices, and we’ve added a common problem-solving section where the phone doesn’t see the second SIM or switches between them automatically.
Basic method: switching through the notification panel
The fastest method to change SIM-card – use the notification bar. it works on all Xiaomi models with two physical slots (for example, Redmi). 10C or POCO M5), but may not be available on hybrid slot devices if it has a memory card installed.
To switch:
- 📱 Swipe down from the top edge of the screen to open the notification bar.
- 🔄 Find the badge "SIM-Maps (usually next to Wi-Fi and Bluetooth icons) If not, tap the button. ⚙️ Edit and add the widget manually.
- 📞 Press the badge. SIM-Select the card and select the one in the list (for example, SIM 1 (MTS) or SIM 2 (Tele2)).
This is a way to quickly switch when making calls or sending SMS, but it doesn’t allow you to set your network priorities or mobile Internet.
2.Tune in. SIM-maps in the parameter menu
If you need to prioritize more than just switching, like making one SIM primary for calls and another for mobile, use the settings section. The path may vary slightly depending on the version of MIUI, but the general logic is maintained.
Instructions:
- Open the Settings app (the gear icon on the desktop).
- Move to the SIM-maps and mobile networks (in some firmware – Mobile network or Dual) SIM).
- Select the Name item SIM-It's a way to give them unique names (e.g., "Worker" and "Personal"), which makes it easier to navigate the menu.
- In the priority section SIM-The card specify which card to use by default for: 📞 Calls. 💬 SMS 🌐 Mobile data
Note: If you select automatic mode for mobile internet, the phone will switch between the two. SIM-This is convenient, but can lead to unpredictable traffic consumption from different numbers.
☑️ Preparation for setup SIM-map
3. Switching SIM-card-time
If you need to change immediately SIM-The card is right during an outgoing call, Xiaomi offers a convenient feature that works even if you have one physical setup. SIM eSIM (for example, on Xiaomi 13 Pro or POCO F5).
How to do this:
- 📱 Start dialing a number in the phone application.
- 🔄 Next to the call button will appear the icon of the current SIM-maps, for example, SIM 1. Stick on him.
- 📞 In the window that appears, select another. SIM-map and press Change.
This method also works for incoming calls: if you have the "Ask Always" mode enabled, the phone will prompt you to choose the option. SIM-map to answer. The setting is in Settings. → SIM-map → Choice SIM-call-card.
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If you often call from different SIM-Add the widget "Quick switching" SIM" To do this, press the empty space on the desktop. → "Widgets" → find "SIM-map".
4. Features of hybrid slots (SIM + microSD)
Many Xiaomi budget models (e.g. Redmi) 9A or POCO C50) It is equipped with a hybrid slot, where the second SIM-It shares space with the memory card. It creates constraints:
| Slot configuration | What's working? | What's not working? |
|---|---|---|
| SIM 1 + SIM 2 | Both SIM-card-activated | It is impossible to use a microSD. |
| SIM 1 + microSD | One SIM and a memory card | Second SIM is offline |
| eSIM + SIM 1 | Both SIMs are active (on supported models) | No microSD slot |
If you are using a hybrid slot, switch between SIM-The only way to do this is to physically replace the cards (microSD removal) to avoid constant manipulation:
- 📱 Use cloud services (Mi Cloud, Google Drive) instead of microSD.
- 🔄 Set up automatic photo backup in Settings → Memory. → Backup.
- 📞 Buy a model with a separate microSD slot (like the Redmi Note 12 Pro). 5G).
How to check the type of slot on your Xiaomi?
5. Set up eSIM on supported models
Xiaomi flagship models (starting with Xiaomi) 12T and POCO F4 GT) Support eSIM – Virtual SIM-Switch between eSIM and physical card that doesn't need to be physically inserted SIM nuanced.
How to add and switch to eSIM:
- Get it. QR-activation code for your operator (for example, MTS, Beeline or Megaphone).
- Go to Settings. → SIM-maps and mobile networks → Add a mobile network.
- Select Add eSIM and scan. QR-code.
- After activation, the eSIM will appear in the list. SIM-You can switch between them in the same way as between physical cards (via the notification panel or settings).
Important: not all operators support eSIM. At the time of 2026 in Russia, the technology is actively offered by MTS and Beeline, and Tele2 and Iota are only for corporate customers.
⚠️ Note: When you remove an eSIM from your phone, it will have to be activated again from the operator. QR-code (up to 300 rubles).
6. Solving switching problems SIM-map
If Xiaomi phone doesn’t switch between SIM-maps or one of them is not defined, check the following points:
| Problem. | Possible cause | Decision |
|---|---|---|
| The phone doesn't see the second SIM | Slot contaminated or damaged | Clean the slot contacts with alcohol, reboot the phone |
| Mobile Internet does not work on a single SIM | Wrong APN settings | Go to Settings. → SIM-map → Settings of access points (APN) and drop it to the factory. |
| The phone itself switches between the SIM. | Network Auto Selection Mode Enabled | Turn off in Settings → Mobile Network → Auto Select |
| It is impossible to call with one SIM. | The operator blocked outgoing | Check the balance and status of services with the operator |
If the problem persists after all the manipulations:
- 🔄 Reset network settings in Settings → System system → Reset → Resetting network settings.
- 📱 Check if any operator software (such as My MTS or My Beeline) has been installed that can block the switching.
- 🔧 Update the firmware to the latest version MIUI (In some assemblies there were bugs with the Dual work SIM).
⚠️ Note: On Xiaomi models with MediaTek processor (e.g. Redmi) 10A or POCO C40) After resetting the network settings may disappear IMEI. Before reset, write it down: dial *#06# in the dialer.
7. Hidden functions MIUI work-in SIM-map
MIUI It offers several hidden management opportunities SIM-And these are the most useful maps that you can't see at first glance:
- 🔄 Quick switching when sending SMS: In the Messages app, click on the icon SIM-maps next to the input field – a selection menu will appear.
- 📊 Traffic statistics by SIM-maps: Go to Settings → SIM-map → Using mobile data to see traffic consumption for each card separately.
- 🔕 Disabling notifications for one SIM: In the settings SIM-The cards can be turned off by incoming calls and SMS for a specific number (useful for the work area) SIM off-hours).
- 🌍 Roaming control: In Settings → Mobile network → Roaming can be banned by one of the SIM-Connect to foreign networks to avoid unexpected costs.
In the models with MIUI 14 and later, the “Smart Switch” function appeared, which automatically selects SIM-The card with the best call signal, to activate it:
- Go to Settings. → Special facilities.
- Choose Smart Functions → Smart switching SIM-map.
- Turn on the switch and set priorities.
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On Xiaomi models with Android 13 and MIUI 14+ It is possible to link specific contacts to a certain SIM-This allows you to automatically call from the right number without manual selection.